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Why Your Organization Should Replace All TLS Certificates Issued by Symantec
October 2018 is a crucial month for anyone owning a website as two of the world’s biggest browsers, Chrome and Firefox, will “distrust” TLS certificates issued by Symantec.
What Is a TLS Certificate?
TLS stands for Transport Layer Security. This technology is meant to keep the internet connection secure by encrypting the information sent between the website and the browser, preventing cybercriminals from reading and modifying any information that’s being transferred.
The more popular TLS isn’t free. A website owner has to buy this technology – referred to as TLS certificate – from any of the companies trusted by browsers. Symantec was once a trusted issuer of TLS certificates by Google, the owner of Chrome, and Mozilla, the organization behind Firefox.
HTTPS, which stands for Hyper Text Transfer Protocol Secure, appears in the URL when a website uses a TLS certificate. Google has also been rewarding websites using TLS certificates with improved web rankings. As of July 2018, according to Mozilla, 3.5% of the top 1 million websites were still using Symantec TLS certificates.
When a visitor attempts to connect to a website, the browser used by the visitor requests the site to identify itself. The site then sends the browser a copy of its TLS certificate. The browser, in return, checks if this TLS certificate is a trusted one. If the browser finds that the TLS certificate can be trusted, the browser then sends back a digitally signed acknowledgment to start the TLS encrypted session.
Reasons Behind the Distrust of Symantec TLS Certificates
In March 2017, Ryan Sleevi, software engineer at Google Chrome, posted on an online forumGoogle’s findings, alleging that Symantec failed to properly validate TLS certificates. Sleevi said that Symantec mis-issued 30,000 TLS certificates over a period spanning several years.
“Symantec allowed at least four parties access to their infrastructure in a way to cause certificate issuance, did not sufficiently oversee these capabilities as required and expected, and when presented with evidence of these organizations’ failure to abide to the appropriate standard of care, failed to disclose such information in a timely manner or to identify the significance of the issues reported to them,” Sleevi said.
Symantec, for its part, said that Google’s allegations are “exaggerated and misleading”. “Google’s statements about our issuance practices and the scope of our past mis-issuances are exaggerated and misleading,” Symantec said. “For example, Google’s claim that we have mis-issued 30,000 SSL/TLS certificates is not true. In the event Google is referring to, 127 certificates – not 30,000 – were identified as mis-issued, and they resulted in no consumer harm. We have taken extensive remediation measures to correct this situation, immediately terminated the involved partner’s appointment as a registration authority (RA), and in a move to strengthen the trust of Symantec-issued SSL/TLS certificates, announced the discontinuation of our RA program.”
Mozilla, for its part, conducted its own investigation surrounding Symantec’s issuance of TLS certificates. Mozilla said it found a set of issueswith Symantec TLS certificates. A consensus proposalwas reached among multiple browser makers, including Google and Mozilla, for a gradual distrust of Symantec TLS certificates.
On October 31, 2017, DigiCert, Inc. acquired Symantec’s website security business, and on December 1, 2017 DigiCert took over the validation and replacement of all Symantec TLS certificates, including TLS certificates issued by Symantec’s subsidiaries: Thawte, GeoTrust and RapidSSL.
“DigiCert will replace all affected certificates at no cost,” DigiCertsaid in a statement. “Additionally, you don’t need to switch to a new account/platform. Continue to use your current Symantec account to replace and order your SSL/TLS certificates.”
Implications of the Distrust of Symantec TLS Certificates
Mozillasets October 23, 2018 as the distrust date of all TLS certificates issued by Symantec. Googlesets October 16, 2018 as the distrust date for all TLS certificates issued by Symantec to non-enterprise users, while January 1, 2019 is the distrust date set by Google for all TLS certificates issued by Symantec to enterprise users. Apple, the owner of the Safari browser, sets “Fall 2018” as the date of complete distrust of Symantec TLS certificates.
In the case of Chrome, if website owners fail to replace their Symantec TLS certificates beyond the prescribed period by Google, the message below will be shown instead:
Image by Google
In the case of Firefox, the message below will be shown instead:
Image by Mozilla
As can be gleaned from the distrust notices by Google and Mozilla, failure to replace Symantec TLS certificates runs the risk of attackers trying to steal information from your organization’s website, including passwords, messages and credit card details.
According to Mozilla, whenever it connects to a website, it verifies that the TLS certificate presented by the website is valid and that the site’s encryption is strong enough to adequately protect the privacy of the visitor. If Firefox determines that the TLS certificate can’t be validated or if the encryption isn’t strong enough, the connection to the website will be stopped and instead, the message, “Your connection is not secure” will be shown, Mozilla said.
“When this error occurs, it indicates that the owners of the website need to work with their certificate authority to correct the policy problem,” Mozilla added.
Contact us today if your organization needs assistance in replacing legacy Symantec TLS certificates.
Nearly Half of the World’s Top Websites Are Risky to Visit, Study Finds
A new study from Menlo Security showed that almost half of the world’s top websites are risky to visit.
According to Menlo Security'sState of the Web (First Half 2018), 42% or nearly half of the Alexa top 100,000 websites are “risky”. The Menlo Security study considers a website as risky when it falls in one of these three criteria:
According to Menlo researchers, the practice of classifying the world’s websites into logical categories is no longer defendable as more than a third of all sites in categories including News and Media, Entertainment and Arts, Shopping and Travel are risky.
Even websites categorized as safe aren’t safe by deﬁnition, with 49% of “News and Media” sites falling within Menlo’s criteria as risky, as 45% of Entertainment and Arts, 41% Travel, 40% Personal Sites and Blogs, 39% Society, 39% Business and Economy and 38% Shopping.
3 Variables that Can Put A Website at Risk
Here are 3 variables that can make a website risky:
1. Risks Linked with Background Websites
Menlo researchers found that every time a visitor visits a website, the site calls on average 25 other sites – also as known as background sites – to fetch a content, for instance, a viral video from a content delivery network (CDN) or an advertisement display from an advertisement delivery network.
Every time you visit a website, therefore, you’re not just visiting one website, but 25 sites on average. Any of these background sites could be used by cyberattackers to compromise the main site and eventually website visitors.
An example of a background site which cybercriminals could compromise the main site is through malvertisement, short for malware advertisement. In malvertisement, the advertisement being displayed on the main site could be infected by a malware. If a visitor clicks on a malvertisement, the visitor's computer then becomes infected with a malware.
2. Risks Linked with Use of Active Content
Active content refers to a software that web developers use to produce personalized and dynamic websites. By using software like Flash, active content allows stock tickers to continuously update, and animated images, maps or drop-down boxes to function.
The trade-off with these active contents is that while these contents make websites personalized and dynamic, web developers lose the control in securing the sites as similar to malvertisements, these contents have to be fetched from background sites. These background sites could be compromised and used to deliver a malware.
Adobe Flash, one of the software used for active content, is known to be packed with security loopholes, making this software the favorite tool by cyberattackers. While Adobe tries to make Flash more secure, the product is simply unfortunate enough to rank as one of the most frequently exploited software by cybercriminals.
3. Risk Linked with Use of Vulnerable Web Software
According to Menlo Security, many of today’s top websites and their accompanying background sites run on vulnerable web software.
"Many of the world’s most popular websites run on back-end web servers that are outdated, including some that have not been updated for years or even decades,” Menlo Security said. “This leaves those websites extremely vulnerable to web-borne malware, exposing site visitors to possible infections, incursions, or breaches. Use of outdated server software also threatens any site to which it serves as a ‘background website.’ Simply put, the older the software, the higher the risk.”
Vulnerable web software refers to a software that has been repeatedly attacked over the years. It also refers to a software that has reached its end of mainstream support, including the end of security updates or patches from the software vendor.
Menlo researchers found that many Business and Economy websites still use Microsoft’s IIS version 5 web server, a software that Microsoft stopped providing updates or patches more than 12 years ago.
Microsoft’s IIS version 5 web server has been exploited by cybercriminals in the past. An example of a malware that exploited the security vulnerability in Microsoft’s IIS version 5 web server is the infamous Code Red, a malware that appeared in three versions from July 2001 to August 2001. The first version of this malware defaced webpages and launched a denial of service attack against www.whitehouse.gov.
Code Red, also known as ISS Buffer Overflow vulnerability, allows an attacker to gain full system level access to any server that’s using the Microsoft Internet Information Services (IIS) Web server software. An attacker that exploits the Code Red or ISS Buffer Overflow vulnerability can perform any system level action, including installing malware, adding, changing or deleting files, and manipulating web server content.
Here are some of the best practices to the lower the odds of being victimized from risky websites:
If you’re a website owner, make sure that your server runs up-to-date software. Running your company website on Microsoft’s IIS 5 web server, a software that Microsoft no longer supports, is a big security risk for your company. Attackers have been known to exploit computer programs that no longer receive security updates or patches from vendors. To keep your website safe, it’s also important to use technologies that prevent the introduction of malicious code via background sites.
As a website visitor, you can lower your odds of being victimized by a risky website by making sure that your computer programs are up-to-date. It’s also important to avoid vulnerable software like Adobe Flash.
Dangers of Cyberattacks as a Result of Source Code Leak
This past week, someone posted the source code of Apple iPhone operating system iOS on GitHub – a repository of open source code.
There was confusion at first as to whether the code was real or not. Apple indirectly confirmed that the code was real by filing a DMCA legal notice demanding GitHub to remove the source code. DMCA, which stands for Digital Millennium Copyright Act, is a takedown request that empowers owners of copyrighted material who believe their rights under U.S. copyright law have been infringed.
The iPhone source code called “iBoot” published on GitHub, Apple said "is responsible for ensuring trusted boot operation of Apple's iOS software." The company added, “The ‘iBoot’ source code is proprietary and it includes Apple's copyright notice. It is not open-source.”
Jonathan Levin, the author of a series of books on iOS and Mac OSX internals, told Lorenzo Franceschi-Bicchierai of Motherboard that the iBoot source code publication is the “biggest leak” in Apple's history.
A source code is a collection of computer instructions that’s written by a programmer when developing a software program. A software can either be open source or non-open source.
With an open source code, anyone can inspect or modify the code. With a non-open source code, the source code is hidden from the public and as such, only the software maker can make changes to the code.
Non-Open Source Code Leak
Apple and Microsoft are examples of companies that keep their products’ source code hidden from the public.
While most companies don’t allow outsiders to view and make modifications on their source code, they allow security researchers, also known as ethical hackers, to review their software, find security vulnerabilities and report this directly to the company to receive monetary reward, also called bounty.
Apple, through its bounty program, pays a maximum of $200,000 to someone who directly reports bugs or security vulnerabilities to the company.
Despite the takedown of the iPhone source code on GitHub, the source code has already made its way to dark web sites.
Access to non-open source code like the iBoot gives hackers a better chance of finding security vulnerabilities that could lead to cyberattacks.
EternalBlue Source Code Leak
On April 15, 2017, a hacker group calling itself the “Shadow Brokers” leaked the source of code of a number of hacking tools believed to be developed by the U.S. National Security Agency (NSA).
The source code of EternalBlue is one of those leaked by the hacker group. EternalBlue could allow remote code execution if a cyberattacker sends specially crafted messages to a Microsoft Server Message Block 1.0 (SMBv1) server.
The EternalBlue source code leak spawned devastating cyberattacks, the most notable of which was the WannaCry cyberattack. In May 2016, hundreds of thousands of computers around the world were infected with WannaCry, a malware that encrypts computer files, prevents users from accessing files and asks for ransom payment in the form of Bitcoin for the release of the decryption key to unlock the affected computer.
Adylkuzz is another malware that uses the EternalBlue source code. The purpose of Adylkuzz malware is to mine the cryptocurrency Monero. Similar to cryptocurrency Bitcoin, a Monero coin needs to be mined – a process by which a transaction is verified, added to the public ledger, known as the blockchain, and a means before a coin is released.
While cryptocurrency mining of Bitcoin can only be done on powerful computers, mining Monero can be done on regular computers and even on smartphones.
The Adylkuzz malware installs the Monero cryptocurrency miner called “cpuminer” on infected computers. Once the cpuminer is installed in a compromised computer, Monero cryptocurrency mining is conducted without the knowledge of the user. Cryptocurrency mining operation, however, will exhaust your computer CPU, resulting in slow performance.
Open Source Code Leak
With an open source code, anyone can inspect or modify the code. An open source is also known as a collaborative code. There are benefits in allowing other programmers to inspect and modify a source code. It’s a known fact that there’s not one software with a perfect source code. Allowing programmers to inspect and modify a source code can enhance and improve the code in the long run.
Linux is an example of an open source software. It’s an operating system similar to Windows and iOS. The difference between Linux and other operating systems is that it’s open source. The Linux source code is free and available to the public to view and, for users with the necessary skills, to contribute to the enhancement of the code.
While the publication of an open source code, on one hand, can be beneficial to society similar to the positive contribution of Linux, publication of an open source code with malicious intent can be detrimental to society.
Mirai Source Code Leak
The publication of the Mirai source code is an example of how a publication of a malicious open source code can be detrimental to society.
On September 30, 2016, a HackForum user by the name of “Anna-senpai” posted the source code of the malicious software called “Mirai”. The Mirai was responsible for the distributed denial of service (DDoS) attack on the website of cybersecurity journalist Brian Krebs on September 20, 2016.
On December 13, 2017, Paras Jha pleaded guilty in creating the Mirai and for conducting a series of DDoS attacks on the networks of Rutgers University between November 2014 to September 2016, which resulted in shutting down Rutgers University’s central authentication server – a gateway portal through which students, staff and faculty deliver assignments and assessments.
According to the U.S. Department of Justice, hundreds of thousands of IoT devices such as wireless cameras and routers were infected with the Mirai malware and were used "to conduct a number of powerful distributed denial-of-service, or ‘DDOS’ attacks, which occur when multiple computers, acting in unison, flood the Internet connection of a targeted computer or computers".
According to Imperva Incapsula, Mirai-infected IoT devices were spotted in 164 countries, appearing even in remote locations like Montenegro, Tajikistan and Somalia.
The publication of the Mirai spawned other DDoS attacks, the most notable of which was the attack on Dyn, a domain name service (DNS) provider which many websites rely upon. The DDoS attacks against Dyn resulted in temporarily shutting down popular websites like Amazon, Twitter, Netflix and even GitHub.
Dyn, in a statement, said, “We are able to confirm that a significant volume of attack traffic originated from Mirai-based botnets.” The company said that 100,000 IoT devices were infected with the Mirai malware to attack its DNS infrastructure.
In December 2017, the source code of the malware called “Satori”, a variant or new version of Mirai, was leaked on Pastebin. This Mirai variant particularly infects Huawei home router model HG532.
While the original Mirai malware infects IoT devices by using default usernames and passwords, Satori doesn’t need usernames and passwords. Security researchers at Qihoo 360 Netlab said, “The bot [Satori] itself now does NOT rely on loader/scanner mechanism to perform remote planting, instead, bot itself performs the scan activity. This worm-like behavior is quite significant.”
Security researchers at NewSky Security said that with the release of the full working code of the Mirai variant Satori, “we expect its usage in more cases by script kiddies and copy-paste botnet masters.”
Cybersecurity Best Practices
Here are some security best practices to protect your organization’s computers from the dangers of cyberattacks as a result of source code leak:
1. Use Supported Software
Supported software refers to a software whereby security updates are regularly issued by the software vendor.
Many fell victim to WannaCry for using Windows operating systems that Microsoft – the software vendor – no longer supports or no longer issues security updates.
A patch, also known as security update, is a piece of software code added to an existing source code that fixes security vulnerabilities.
WannaCry could have been prevented by simple patching or installing of the security update issued by Microsoft on March 14, 2017 – a month before the hacker group leaked the EternalBlue source code. Microsoft’s March 14, 2017 security update patches or fixes the security vulnerability exploited by EternalBlue. This security update was issued to supported Windows operating systems.
3. Use Latest Software Version
Many leaked source code are typically source code of older software version. Software vendors normally fix security vulnerabilities found in older software versions with the latest software version.
Interesting to note that Windows 10 proved to be resilient against Petya ransomware attack unleashed more than a month after the WannaCry attack. Similar to WannaCry, Petya exploited security vulnerabilities exploited by EternalBlue and EternalRomance – two hacking tools believed to be developed by the NSA and leaked by the hacker group Shadow Brokers.
4. Practice Network Segmentation
There are instances that security updates can’t be installed right away. One way to prevent or minimize the effects of a cyberattack is through network segmentation – a process of dividing computer network into subnetworks. With network segmentation, cyberattack on one subnetwork won’t affect the other subnetworks.
5. Have the Right DDoS Protection
Cybercriminals today don’t necessarily create their own attack tools. Some simply copy leaked source code. This is the case of DDoS-for-hire groups, a bunch of cybercriminals that offer DDoS service for a fee. There are available tools that effectively counter these DDoS attacks. Connect with us today and protect your business.
Cyber Espionage Group Targets Critical Infrastructure Using Old Hacking Tactics
Cyberattacks against critical infrastructure – energy, nuclear, water, aviation and critical manufacturing sectors – in the US have been going on since May 2017, the US Computer Emergency Readiness Team (US-CERT) said in a rare technical alert notice.
Symantec, on the other hand, reported that cyberattacks against the energy infrastructure in some European countries and in the US have been underway since December 2015. Cisco researchers, meanwhile, reported that since at least May 2017, they have observed attackers targeting critical infrastructure and energy companies around the world, in particular, Europe and the US.
While US-CERT and Cisco didn’t name a particular group responsible for the ongoing cyberattacks against critical infrastructure, Symantec identifies the threat actors collectively known as “Dragonfly” as the group behind the cyberattacks against the energy sector. Symantec researchers said the group has been in operation since at least 2011.
Symantec dubbed Dragonfly’s latest campaign against the energy sector as “Dragonfly 2.0”, a campaign that started in late 2015 the most notable cyberattack of which was the attack against Ukraine’s power system in 2015 and 2016, resulting in power outages affecting hundreds of thousands of residents.
The US-CERT technical alert – the result of analytic efforts between the Department of Homeland Security (DHS) and the Federal Bureau of Investigation (FBI), and the reports from Symantec and Cisco showed that old hacking tactics have been employed by the threat group.
Methods of Cyber Attacks
1. Malicious Emails
According to US-CERT, the threat group used malicious emails or phishing emails with the subject line such as “AGREEMENT & Confidential”. The group also used malicious Microsoft Word attachments that appear to be legitimate invitations, policy documents or curricula vitae for industrial control systems personnel to lure users to open the attachment, US-CERT said.
According to Symantec, one example of the malicious email campaign used by the threat group were emails disguised as an invitation to a New Year’s Eve party to targets in the energy sector in December 2015.
Cisco researchers identified an email-based attack called "Phishery", targeting the energy sector, including nuclear power. Phishery became publicly available on GitHub in late 2016
“Typically, malicious Word documents that are sent as attachments to phishing emails will themselves contain a script or macro that executes malicious code,” Cisco researchers said. “In this case, there is no malicious code in the attachment itself. The attachment instead tries to download a template file over an SMB connection so that the user's credentials can be silently harvested. In addition, this template file could also potentially be used to download other malicious payloads to the victim's computer.”
2. Watering Holes
According to US-CERT and Symantec, the cyber espionage group used "watering holes" – websites that have legitimate content by reputable organizations but are altered by the threat group to have malicious content. Almost half of the known watering holes, the US Computer Emergency Readiness Team said, are reputable websites that offer information to those in the critical infrastructure sector.
“As well as sending malicious emails, the attackers also used watering hole attacks to harvest network credentials, by compromising websites that were likely to be visited by those involved in the energy sector,” Symantec said.
3. Social Engineering
These stolen network credentials, according to Symantec, were then used for follow-up attacks on the target critical infrastructure organization itself by delivering trojanized software – malicious software that’s disguised as legitimate software.
One of the trojans used by Dragonfly group is Karagany.B – malicious software that infiltrates computer systems of target organizations by masquerading as Flash updates. The group here used the old hacking tactic of social engineering – convincing victims they need to download software, in this case, an update for their Flash player.
The trojan Karagany.B enables attackers remote access to the victims’ computer systems and allows them to install additional malicious tools if needed. Another trojan used by the group, according to Symantec, is the trojan Heriplor – malicious software that also enables attackers remote access to the victims’ computer systems.
“Trojan.Heriplor is a backdoor that appears to be exclusively used by Dragonfly, and is one of the strongest indications that the group that targeted the western energy sector between 2011 and 2014 is the same group that is behind the more recent attacks,” Symantec said. “This custom malware is not available on the black market, and has not been observed being used by any other known attack groups.”
Symantec noted that Dragonfly’s origins cannot definitively be determined. While some of Dragonfly’s malware codes were written in Russian and French, Symantec noted, this could be a way to mislead people.
How to Prevent Dragonfly Attacks
To prevent Dragonfly attacks, the US-CERT recommends the following:
Reaper IoT Botnet Threatens to Take Down Websites
Reaper IoT botnet, considered as more powerful than the Mirai botnet, is spreading worldwide and threatens to take down websites.
According to Check Point researchers, the Reaper botnet already infected one million IoT devices worldwide. "So far we estimate over a million organizations have already been affected worldwide, including the US, Australia and everywhere in between, and the number is only increasing," Check Point researchers said.
Researchers at Qihoo 360 Netlab, meanwhile, reported that the number of “vulnerable devices in one c2 queue waiting to be infected” reached over 2 million.
IoT botnet refers to internet-connected smart devices which are infected by one malware and is controlled by a cyber criminal from a remote location. It’s typically used by cyber criminals to launch a distributed denial-of-service (DDoS) attack.
“In a distributed denial-of-service (DDoS) attack, an attacker may use your computer to attack another computer,” the United States Computer Emergency Readiness Team (US-CERT) defines DDoS attack. “By taking advantage of security vulnerabilities or weaknesses, an attacker could take control of your computer. He or she could then force your computer to send huge amounts of data to a website or send spam to particular email addresses.”
Infecting millions of IoT devices with a malware is a time-consuming task. Cyber criminals found a way to automate this task by creating a botnet – an army of infected IoT devices. The Reaper malware, as well as the Mirai malware, is spread by the IoT devices themselves. After infecting a particular IoT device, this infected device starts to look for other devices to infect.
The Mirai botnet in October 2016 brought down major websites – including Twitter, Spotify and Reddit – by launching a DDoS attack against the DNS infrastructure of New Hampshire-based company Dyn. Many major websites rely on Dyn’s internet infrastructure.
Reaper Botnet versus Mira Botnet
While the Reaper botnet shares similar characteristics with Mirai, it differs in many ways with the Mirai botnet. On September 30, 2016, the attacker known as “Anna-senpai” publicly released the source code of Mirai. According to Check Point and Qihoo 360 Netlab researchers, Reaper borrows some of the source code of Mirai, but this new botnet is significantly different from Mirai in several key behaviors.
Here are some of the differences between Reaper and Mirai:
1. Number of Affected IoT Devices
The first difference between the Reaper botnet and Mirai botnet is in terms of the number of affected IoT devices. Mirai affected about 500,000 IoT devices, while Reaper has infected over a million IoT devices.
2. Means of Infecting IoT Devices
Mirai was able to infect hundreds of thousands of IoT devices by exploiting the lax attitude of IoT users of not changing the factory or default login and password details. By using default login and password details, Mirai attackers were able to infect a massive number of IoT devices.
On the hand, Reaper’s means of infecting IoT are by exploiting several IoT vulnerabilities which the devices’ manufacturers may or may not have issued security updates or patches. Reaper attackers can, therefore, infect IoT devices even if a strong password is used as the means of entry to the device is by exploiting known software vulnerabilities.
According to Check Point researchers, the Reaper, for instance, infects unpatched wireless IP cameras by exploiting the “CVE-2017-8225” vulnerability.
3. Botnet Capabilities
Mirai already showed what it can do: It brought down major websites worldwide even for just a few hours. For Reaper, it’s still unclear what it wants to do. As of this writing, Reaper’s creator or creators just want (based on the code they wrote) to infect as many IoT devices without yet writing the command to attack any internet infrastructure or websites.
"It is too early to guess the intentions of the threat actors behind it, but with previous Botnet DDoS attacks essentially taking down the Internet, it is vital that organizations make proper preparations and defense mechanisms are put in place before an attack strikes," Check Point researchers said.
The sheer number of infected IoT devices by Reaper – more than twice the number of Mirai’s victims – show how powerful and devastating Reaper can do when used as a means to launch a DDoS attack.
Gartner projected that 8.4 billion IoT devices will be in use worldwide in 2017 and will reach 20.4 billion by 2020. Examples of IoT devices include security systems (alarm systems, surveillance cameras), automation devices (devices that control lighting, heating and cooling, electricity), smart appliances (refrigerators, vacuums, stoves) and wearables (fitness trackers, clothing, watches).
"As more businesses and homeowners use Internet-connected devices to enhance company efficiency or lifestyle conveniences, their connection to the Internet provides new vulnerabilities for malicious cyber actors to exploit," the US Federal Bureau of Investigation (FBI) said. "Once an IoT device is compromised, cyber criminals can facilitate attacks on other systems or networks, send spam e-mails, steal personal information, interfere with physical safety, and leverage compromised devices for participation in distributed denial of service (DDoS) attacks."
How to Block Reaper IoT Botnet
In most cases, owners of infected IoT devices are unaware that their devices are infected and are used for criminal activities, such as launching a DDoS attack. IoT users who fail to change their devices’ default login and password details, as well as by failing to apply security updates, are part of the problem for “blindly” contributing to cyber criminal activities like DDoS attacks.
Here are the top cyber security measures to stop attackers from infecting your IoT devices and turned it into a botnet:
1. Timely Apply Security Updates of IoT Software
Always apply in a timely manner all security updates issued by your IoT manufacturer.
2. Use Strong Password
While the sophisticated malware like the Reaper can bypass strong password, it still pays to use a strong password to ward off less sophisticated malware.
3. Isolate IoT devices on their own protected networks.
4. Block traffic from unauthorized IP addresses by configuring network firewalls.
5. Turn off IoT devices when not in use.
6. When buying an IoT device, look for manufacturers that offer software updates.
'Secure' Wi-Fi Standard Has Serious Security Flaws
Researchers from the University of Leuven in Belgium have discovered a series of serious wi-fi security flaws that essentially eliminate wi-fi privacy.
These series of wi-fi vulnerabilities collectively dubbed as “Krack”, short for key reinstallation attacks, can access data that was previously presumed to be safely encrypted. Krack attackers can steal wi-fi passwords, chat messages, emails, photos and other sensitive information. It’s also possible, depending on device use and the network configuration, for Krack attackers to inject malicious software like ransomware into websites.
The University of Leuven researchers, in their paper entitled “Key Reinstallation Attacks: Forcing Nonce Reuse in WPA2” (PDF) said that “every Wi-Fi device is vulnerable” to Krack attacks.
"The weaknesses are in the Wi-Fi standard itself, and not in individual products or implementations,” lead researcher Mathy Vanhoef said.
Wi-Fi Alliance, a non-profit organization that promotes wi-fi technology and certifies wi-fi products, said, “Recently published research identified vulnerabilities in some Wi-Fi devices where those devices reinstall network encryption keys under certain conditions, disabling replay protection and significantly reducing the security of encryption.”
For its part, the International Consortium for Advancement of Cybersecurity on the Internet (ICASI), in a statement said, “Depending on the specific device configuration, successful exploitation of these vulnerabilities could allow unauthenticated attackers to perform packet replay, decrypt wireless packets, and to potentially forge or inject packets into a wireless network.”
ICASI members include Amazon, Cisco Systems, IBM, Intel Corporation, Juniper Networks, Microsoft Corporation and Oracle Corporation.
How Krack Works
For Krack to work, the attacker must be within the range of a victim. As proof-of-concept, lead researcher Vanhoef executed Krack attacks against wi-fi devices. Vanhoef was able to show that Krack not just steals login credentials – including email addresses and passwords – but all data that the victim transmits or sends was decrypted.
It’s also doable for Krack attackers, depending on the network setup and the device being used, to decrypt, not just data sent over wi-fi but also data sent towards the victim, for instance, the content of a website.
“Although websites or apps may use HTTPS as an additional layer of protection, we warn that this extra protection can (still) be bypassed in a worrying number of situations,” Vanhoef said. “For example, HTTPS was previously bypassed in non-browser software, in Apple's iOS and OS X, in Android apps, in Android apps again, in banking apps, and even in VPN apps.”
Krack is able to decrypt not just data sent over wi-fi but also data sent towards the victim by exploiting the vulnerabilities in the 4-way handshake of the Wi-Fi Protected Access 2 (WPA2) protocol.
The 4-way handshake is a 14-year-old technology that supposedly ensures wi-fi privacy by installing a fresh and unique encryption key that’ll be used to encrypt all subsequent traffic every time a device joins a protected wi-fi network.
Instead of installing a fresh and unique encryption key, Krack tricks the device into reinstalling an already-in-use encryption key. This is done by manipulating and replaying handshake messages. The researchers also found that Krack similarly exploits other wi-fi handshakes, including PeerKey handshake, the group key handshake and the Fast BSS Transition (FT) handshake.
As mentioned, Krack is a series of wi-fi vulnerabilities. This means that not just one wi-fi vulnerability is exploited by Krack. The Common Vulnerabilities and Exposures (CVE) – a dictionary of common names for publicly known cyber security vulnerabilities – list the following specific vulnerabilities related to Krack:
According to Wi-Fi Alliance, there’s no evidence that Krack has been exploited maliciously in the wild.
How to Prevent Krack Attacks
To prevent Krack attacks, make sure to update your wi-fi device as soon as patch or security update becomes available. A security update ensures that an encryption key is only installed once, preventing Krack attacks.
Password change of your wi-fi network won’t stop Krack attacks. The only remedy is to apply the patch or security update of your wi-fi device as soon as it becomes available. It’s also important to update your router’s firmware. While it’s important to patch or apply the latest security updates of your wi-fi and router, it also pays to change the wi-fi password as a precaution.
According to Vanhoef, they notified wi-fi manufacturers about the Krack issue on July 14, 2017. They also notified the Computer Emergency Response Team Coordination Center (CERT/CC) – the world’s first computer emergency response team for internet security incidents. CERT/CC, in turn, issued a broad notification to wi-fi manufacturers on August 28, 2017 about this issue.
“We have released a security update to address this issue,” Microsoft spokesperson told The Verge. “Customers who apply the update, or have automatic updates enabled, will be protected. We continue to encourage customers to turn on automatic updates to help ensure they are protected.”
Windows updates released last October 10, according to Microsoft, addressed this issue. The company said it “withheld disclosure until other vendors could develop and release updates”.
“Wi-Fi Alliance now requires testing for this vulnerability within our global certification lab network and has provided a vulnerability detection tool for use by any Wi-Fi Alliance member,” the alliance said. “Wi-Fi Alliance is also broadly communicating details on this vulnerability and remedies to device vendors and encouraging them to work with their solution providers to rapidly integrate any necessary patches.”
Top 7 Cyber Security Tools for Your Business
With so much of our information online, everyone is vulnerable to hackers and cyber-thieves. When it comes to business, a cyber invasion is a constant threat.
Short term loss could be financial, intellectual property theft, data loss, or worse.
The real threat is the long term loss of trust and reputation damage that could take years to repair. If your clients' information is exposed, it will be hard for them to consider it safe to give you their business again.
Protect your business with these 7 cyber security tools.
7 Cyber Security Tools Your Business Must Be Using
In order to protect your business' digital information, you need a variety of cyber security tools in place.
For complete peace of mind, you'll want to work with a trusted cyber security partner. In the mean time, these tools are a great place to start.
1. Malware Scanners
Malware is short for malicious software. It is designed by hackers to gain access to a computer without the owner's knowledge.
You must have specific anti-malware cyber security tools in place to detect any hacker invasion.
There are a variety of malware scanners out there, many even available for free (with limited features).
Protect your business with automatic malware scanners in place.
2. Routine Patching
Patching is the process of installing a piece of software that repairs any security flaws. Updating an app is an example of patching.
Picture your business's digital infrastructure as a house. Each time you add a new application, piece of software, etc. it's like adding a new room to the house.
Software, apps, and the like are built by humans, meaning that there is room for human error. Human error is like an unlocked door or unfinished window in one of the new rooms.
This can leave a welcome mat out to cyber attackers. That's why your security plan needs to include routine assessments and patching.
3. Two-Factor Authentication
Use two-factor authentication to add a difficult-to-hack layer of security to your log in systems.
Examples include a verification code sent to a linked phone number or a piece of information only the user would know.
4. Restrictive Administrative Access
Add an additional security level for your most sensitive information and infrastructure by restricting who can access it.
Click here for more information on how to implement restrictive admin mode.
5. Network Segmentation
Divide your computer network into sub networks to improve security and performance.
This allows you to isolate the most sensitive data to a specific network to limit access and decrease congestion.
6. Vulnerability Scanning
There's no better way to access your security levels than a vulnerability scan.
Try our free vulnerability assessment to find weaknesses in your code and how to remedy them.
7. 24/7 Security Monitoring
Cyber security protection doesn't come in the form of a quick fix.
Continually protect your business' data with a 24/7 security monitoring system in place to catch attacks the minute they happen.
Protect Your Business for Peace of Mind
Cyber security tools are of the utmost importance for businesses and individuals alike.
Questions? Let us know if there is anything we can help you with. Our emergency response team is available 24/7 if you're currently dealing with a cyber attack. Contact us today.
Whole Foods Becomes the Latest Victim of a Cyber Attack
Whole Foods, the supermarket chain recently acquired by Amazon, becomes the latest victim of a cyber attack.
The supermarket chain officially acknowledged that the cyber attack potentially compromised its customers’ credit card details. The data breach, according to Whole Foods, affected only the point of sale system used in taprooms (bars) and restaurants located within some of the Whole Foods stores. As of November 2016, The Mercury News reported that 180 of Whole Foods’ 464 stores had bars and restaurants.
In its official statement, Whole Foods stressed that Whole Foods’ bars and restaurants use a different point of sale system from the company’s supermarket point of sale system. The company said that payment cards used at the supermarket point of sale system were not affected. It added that the Amazon systems, which acquired the supermarket chain last month, don’t connect to the Whole Foods’ bars and restaurants system. As such, transactions on Amazon.com haven’t been affected.
Whole Foods’ public statement didn’t reveal how many customers may have been affected, how many bars and restaurants may have been involved or when the data breach was discovered.
The Whole Foods data breach came just heels after the Sonic Drive-in cyber security breach. The American drive-in fast-food restaurant chain, with over 3,500 restaurants in 45 US states, confirmed that there's been some “unusual activity” on credit cards used at some of its restaurants. Similar to Whole Foods, the company didn’t disclose how many credit cards were potentially affected or when the data breach took place.
Krebs on Security reported that Sonic Drive-In cyber security breach may have impacted millions of credit and debit cards.
“The first hints of a breach at Oklahoma City-based Sonic came last week when I began hearing from sources at multiple financial institutions who noticed a recent pattern of fraudulent transactions on cards that had all previously been used at Sonic,” Krebs on Security wrote.
About 5 million credit and debit card details recently put up for sale on the underground online site Joker’s Stash has been tied to a breach at Sonic Drive-In, according to Krebs on Security.
“I should note that it remains unclear whether Sonic is the only company whose customers’ cards are being sold in this particular batch of five million cards at Joker’s Stash,” Krebs on Security said. “There are some (as yet unconfirmed) indications that perhaps Sonic customer cards are being mixed in with those stolen from other eatery brands that may be compromised by the same attackers.”
Cyber criminals typically steal credit card details from merchants that accept cards by hacking into their point of sale systems.
What is Point of Sale
Point of sale, also known as POS, is a system used by merchants where customers pay for goods or services. The POS system consists of hardware and software. The POS hardware refers to the device used to swipe a credit or debit card and the computer or mobile device attached to it. The POS software refers to the computer program that instructs the hardware what to do with the data it captures.
Through the years, there have been a number of vulnerabilities identified in the POS system. The vulnerability of the POS system was highlighted with the arrest and conviction of Albert Gonzalez, leader of the group that stole more than 90 million card records from retailers.
The Gonzalez group took advantage of the lack of point to point encryption of POS system. If you pay using your credit card at a POS terminal, your credit card data housed in the card’s magnetic stripe is read, passed through a series of systems and networks before reaching the store’s payment processor.
In 2005, credit card details transmitted over a public network from a POS device are required to be encrypted using network-level encryption, for example, the Secure Sockets Layer (SSL). Within the internal network of the store, however, credit card details weren’t required to be encrypted except when stored.
The Gonzalez group took advantage of this lack of point to point encryption at the internal network level by installing network-sniffing tools that allowed him and his group to steal over 90 million card details. As a result of the Gonzalez group’s criminal activities, many stores today use POS system with encryption even at the internal network level.
Through the years though, POS attackers have honed their skills and a number of POS attack methods have been developed. Big companies like Target Corporation succumbed to POS attackers. In May of this year, 47 US states and the District of Columbia have reached a $18.5 million settlement with Target that resolves the states' investigation into the company's 2013 data breach, which affected more than 41 million customer payment card accounts.
How to Prevent POS Attacks?
Customers’ credit card data in the POS system passes through the following:
In each of these stages, customers’ credit card data becomes vulnerable to POS attackers. On the terminal level, attackers can insert hardware like skimmers or firmware to steal credit card details. As data passes from terminal to cash register or cash register to central payment processing server, the data may be stolen using network traffic sniffing tools like the one used by the Gonzales group. From the terminal to the internet exchange, there can be exposure of the encryption key. Credit card details may also be stolen via RAM scrapping malware from the cash register level or at the central payment processing server level.
From terminal to internet exchange, mitigation strategy includes a firewall. At the cash register level or central payment processing server level, mitigating strategy includes endpoint security software. From cash register to central payment processing server, mitigating strategies include data encryption and the use of SSL. From terminal to internet exchange, mitigating strategy includes security information and event management (SIEM).
Network segmentation is also one of the mitigating strategies to counter POS attacks. The network segmentation of the Whole Foods’ bars and restaurants from Whole Foods supermarket and Amazon.com has prevented attacks on the other two Amazon assets. Target, meanwhile, in the 2013 data breach didn’t implement network segmentation.
When you need help protecting your missing critical applications and infrastructure, give us a call to speak with one of our cyber security and compliance experts.
Wall Street’s Top Regulator Discloses Own Data Breach
The US Securities and Exchange Commission (SEC) – Wall Street’s top regulator – is the latest entity that publicly acknowledged that it was a victim of a cyber attack.
SEC Chairman Jay Clayton, who took office in May of this year, admitted that in August 2017, the Commission learned that a hacking incident detected way back in 2016 “may have provided the basis for illicit gain through trading”.
“Cybersecurity is critical to the operations of our markets and the risks are significant and, in many cases, systemic,” said Chairman Clayton. “We must be vigilant. We also must recognize – in both the public and private sectors, including the SEC – that there will be intrusions, and that a key component of cyber risk management is resilience and recovery.”
This recent cyber attack disclosure came just two weeks after the massive data breach at credit monitoring company Equifax, affecting 143 million Americans – almost all of the adults in the US, and affecting 100,000 Canadians and 400,000 UK residents.
This recent SEC hacking incident puts the Commission in an uneasy position given that it’s the government body that’s responsible for enforcing securities laws, issuing rules and regulations and ensuring that securities markets are fair, honest and provide protection for investors. The Commission, in particular, has the power to fine private entities for failing to safeguard customer information.
In June 2016, Morgan Stanley Smith Barney LLC paid a $1 million SEC fine over stolen customer data. The Morgan Stanley case originated from the act of then-employee who accessed and transferred the data of nearly 730,000 accounts to his personal server, which was then eventually hacked by third parties.
The Commission found Morgan Stanley violated Regulation S-P, a regulation that requires registered investment companies, broker-dealers and investment advisers to "adopt written policies and procedures that address administrative, technical, and physical safeguards for the protection of customer records and information." Morgan Stanley agreed to settle the charges without denying or admitting the SEC findings.
In September 2015, a St. Louis-based investment adviser firm paid a $75,000 SEC fine for failing to establish the needed cyber security policies and procedures, resulting in a data breach that compromised the personally identifiable information (PII) of nearly 100,000 individuals, including thousands of the clients of the firm. SEC, in its decision, said the firm “failed to conduct periodic risk assessments, implement a firewall, encrypt PII stored on its server, or maintain a response plan for cybersecurity incidents.”
Patch, Patch, Patch
According to SEC Chairman Clayton, hackers exploited the software vulnerability of the Commission’s corporate filing system known as “EDGAR”, short for electronic data gathering, analysis and retrieval. The software vulnerability was patched after discovery, the SEC Chairman said.
The Commission’s EDGAR system, performs automated collection, validation, indexing, acceptance and forwarding of data submitted by companies and others required to file certain information with the Commission. The system, in particular, receives, stores and transmits nonpublic information, including data which relates to the operations of credit rating agencies, issuers, investment advisers, broker-dealers, clearing agencies, investment companies, municipal advisors, self-regulatory organizations ("SROs") and alternative trading systems ("ATSs").
What is a Patch
A patch is a piece of code that’s added into a software program to fix a defect also known as software bug, including a security vulnerability. Patches are created and released by software creators after defects or security vulnerabilities are discovered. If a patch isn’t applied in a timely manner or if a software creator no longer offers a patch, cyber criminals can exploit a known vulnerability.
The Common Vulnerabilities and Exposures (CVE), an international industry standard, lists and assigns names to all known cyber security vulnerabilities. The United States Computer Emergency Readiness Team (US-CERT) provides an up-to-date list of known vulnerabilities and patches.
“Federal agencies consistently fail to apply critical security patches on their systems in a timely manner, sometimes doing so years after the patch becomes available,” Gregory Wilshusen, Director for Information Security Issues, said in a written statement before the Subcommittee on Research and Technology, Committee on Science, Space, and Technology, House of Representatives in February 2017. “We also consistently identify instances where agencies use software that is no longer supported by their vendors. These shortcomings often place agency systems and information at significant risk of compromise, since many successful cyberattacks exploit known vulnerabilities associated with software products. Using vendor-supported and patched software will help to reduce this risk.”
The 2 major cyber attacks in 2017 – WannaCry and Equifax data breach – exploited known vulnerabilities in computers that were unpatched.
WannaCry ransomware, which affected thousands of computers worldwide in May of this year, exploited the vulnerability in Microsoft Windows. This particular vulnerability could allow remote code execution if an attacker sends specially crafted messages to a Microsoft Server Message Block 1.0 (SMBv1) server.
Microsoft, for its part, released a patch or security update for this known vulnerability in March 2017 – two months before WannaCry was released into the wild.
For the Equifax data breach, the identified cause was the vulnerability in the Apache Struts in the US online dispute portal web application of Equifax. According to Equifax, the data breach happened from May 13, 2017 to July 30, 2017.
The Apache Software Foundation, a not-for-profit corporation that manages and provides patches for Apache Struts, released 4 patches for 4 known vulnerabilities from March 2017 to July 2017.
Even as cyber vulnerabilities are made public and patches are released, many organizations still fall victim to cyber attacks for failing to simply apply the available patches. According to the Apache Software Foundation, majority of the breaches that came to its attention are “caused by failure to update software components that are known to be vulnerable for months or even years.”
Days after the patch for CVE-2017-5638 – a critical vulnerability in Apache Struts that allows attackers to take almost complete control of web servers used by banks and government agencies – was made available to the public, security researchers still noticed a spike of attacks exploiting this vulnerability.
Patching known vulnerabilities in a timely manner is important as cyber criminals are quick to make use of newly published cyber security vulnerabilities, using them to launch cyber attacks within days.
Monitoring and managing vulnerabilities and threats is only effective when done regularly. Identifying security vulnerabilities is an onerous task generally assigned to your company's IT department. We can save you time and money by proactively scanning your infrastructure and networks, helping you prevent a data breach. Connect with us today to learn more and protect your business.
New Bluetooth Malware Puts Billions of Devices at Risk
A new malicious software dubbed as “BlueBorne” puts billions of Bluetooth-enabled devices at risk.
Dr. Jaap Haartsen invented the Bluetooth while working at Ericsson in the 1990s. Bluetooth was named after the 10th-century king of Denmark King Harald Blåtand (blue-tooth in English), who famously united Scandinavia. Just as King Bluetooth united Scandinavia, Dr. Haartsen’s invention unites or connects devices.
Bluetooth is currently the most widely-used protocol for short-range communications. It's used in a wide range of devices, from personal computers to smart phones, consumer electronics devices (smart TVs, printers), medical and health devices, home automation and autonomous cars.
Bluetooth is now licensed, managed and maintained by the Bluetooth Special Interests Group (SIG). Tech giants Google, Microsoft, Apple, Intel and IBM are some of the group members.
How BlueBorne Works
1. BlueBorne attacks devices via Bluetooth.
The security research firm Armis first identified the BlueBorne malware. Researchers at the research firm found that BlueBorne malware specifically exploits the security flaw in Bluetooth-enabled devices running on Windows, Android, pre-version 10 of iOS and Linux operating systems, regardless of the Bluetooth version in use.
This means that every single computer, mobile device or IoT device running on one of the above-mentioned operating systems is at risk. There are currently 2 billion Android users, 500 million Windows 10 users, 1 billion Apple users, and 8 billion IoT users.
Affected devices include all Android phones, tablets and wearables (except those using only Bluetooth Low Energy), all Windows computers since Windows Vista and all Linux devices like Samsung Gear S3, Samsung Smart TVs and Samsung Family Hub.
2. BlueBorne spreads through the air.
BlueBorne is alarming as it operates through the air. Unlike traditional cyber attacks, no action is required from the victim to enable the BlueBorne attack – no need to download a malicious file or click on a link.
Once the malware detects the Bluetooth is active on a device that runs on Windows, Android, pre-version 10 of iOS or Linux operating system, it attacks it despite the fact that the targeted device isn’t paired with the attacker’s device or set on discoverable mode.
“Unlike the common misconception, Bluetooth enabled devices are constantly searching for incoming connections from any devices, and not only those they have been paired with,” Armis said.
To initiate BlueBorne, the attacker must be near the targeted user and the Bluetooth feature of the target user's device must be turned on. Billions of devices are at risk as Bluetooth is turned on by default on many devices. Many users also prefer to turn on Bluetooth most of the time to conveniently connect it to keyboards, headphones and other various IoT devices.
The airborne operation of BlueBorne is problematic in the following ways:
a) Highly Infectious
Spreading from one device to another through the air makes BlueBorne highly infectious since the Bluetooth process enjoys high privileges on all operating systems. Exploiting Bluetooth gives hackers full control over the device.
b) Bypasses Traditional Cyber Security Measures
As BlueBorne is spread through the air, it bypasses traditional cyber security measures. Typical security measures are defenseless against airborne attacks. BlueBorne attackers can bypass secure internal “air-gapped” networks – a security measure that isolates a computer or network and prevents it from establishing an external connection.
"These silent attacks are invisible to traditional security controls and procedures. Companies don't monitor these types of device-to-device connections in their environment, so they can't see these attacks or stop them," Yevgeny Dibrov, CEO of Armis, said in a statement. "The research illustrates the types of threats facing us in this new connected age."
3 Ways BlueBorne Attackers Could Exploit Your Device
1. Take Full Control of Your Device for Criminal Activities
BlueBorne attackers could remotely execute code on your vulnerable device, allowing the attackers to take full control over your device, access corporate networks, systems and data. With full access to your device, hackers could perform criminal activities, including ransomware and data theft.
2. Create Large Botnets Similar to the Mirai Botnet
Mirai botnet uses compromised IoT devices to carry out crippling Distributed Denial of Service attacks (DDoS) attacks. In 2016, crippling DDoS attacks were waged against the website of cyber security blogger Brian Krebs and a French web hosting company. BlueBorne attackers, for instance, could use your compromised device, together with other compromised devices, to execute DDoS against a particular website.
3. Perform Man-in-The-Middle Attack
BlueBorne attackers could perform a man-in-the-middle attack on your device.
Man-in-the-middle attack happens when attackers redirect the communication between two users to the attackers’ computer without the knowledge of the original two users.
“An attacker who successfully exploited this vulnerability could perform a man-in-the-middle attack and force a user's computer to unknowingly route traffic through the attacker's computer,” Microsoft said in its September 12, 2017 security bulletin. “The attacker can then monitor and read the traffic before sending it on to the intended recipient.”
Microsoft calls this Bluetooth vulnerability as "Microsoft Bluetooth Driver Spoofing Vulnerability".
How to Prevent BlueBorne Attacks
1. Turn Bluetooth Off
The safest way to prevent a BlueBorne attack is by turning off the Bluetooth feature on your device. This malware can access your device only when it’s in the active mode. If it’s turned off, the malware can’t successfully infiltrate your device.
2. Update Your Operating System
It’s advisable to keep your operating system up-to-date. Not all operating systems though have patched or issued a security update that fixes BlueBorne vulnerability.
According to Armis, it informed Google about the BlueBorne issue on April 19, 2017. Google released a public security update and security bulletin on September 4th, 2017.
Microsoft was informed by Armis about the BlueBorne issue on April 19, 2017. Microsoft released security updates on July 11, 2017.
Apple was informed about BlueBorne on August 9, 2017. Apple corrected this vulnerability with its latest iOS and tvOS.
Linux was informed by Armis on August 15 and 17, 2017 and on September 5, 2017. As of September 12, 2017, Armis said, Linux hasn't yet issued a public security update to patch the BlueBorne malware.
Steve E. Driz