Summary According to theregister.co.uk researchers at Singapore University disclosed 12 security vulnerabilities affecting certain Bluetooth Low Energy (BLE) software development kits (SDKs) from system-on-a-chip (SoC) vendors. The vulnerabilities...

Summary

According to theregister.co.uk [hXXps://www.theregister.co.uk/2020/02/13/dozen_bluetooth_bugs/] researchers at Singapore University disclosed 12 security vulnerabilities affecting certain Bluetooth Low Energy (BLE) software development kits (SDKs) from system-on-a-chip (SoC) vendors. The vulnerabilities may allow attackers to “crash or… bypass pairing security to gain arbitrary read and write access to device functions.” Proof-of-concept code and a video demonstrating the crash of a device (Fitbit) are publicly available.

Analysis

The register article quoted Matheus E. Garbelini, Sudipta Chattopadhyay, and Chundong Wang with the following statement: "SWEYNTOOTH potentially affects IoT products in appliances such as smart-homes, wearables and environmental tracking or sensing." Their full research paper can be found here [hXXps://asset-group.github.io/disclosures/sweyntooth/sweyntooth.pdf].

Patches have been made available for some of the devices that are known to be vulnerable.

The E-ISAC recommends members evaluate IOT devices in use that are BLE enabled and may be vulnerable. Below is a list of the CVEs released with the research:

Vulnerability

CVE(s)

Vendor

Link Layer Length Overflow

CVE-2019-16336 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16336]
CVE-2019-17519 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17519]

Cypress
NXP

LLID Deadlock

CVE-2019-17061 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17061]
CVE-2019-17060 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17060]

Cypress
NXP

Truncated L2CAP

CVE-2019-17517 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17517]

Dialog

Silent Length Overflow

CVE-2019-17518 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17518]

Dialog

Public Key Crash

CVE-2019-17520 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17520]

Texas Instruments

Invalid Connection Request

CVE-2019-19193 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19193]

Texas Instruments

Invalid L2CAP Fragment

CVE-2019-19195 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19195]

Microchip

Sequential ATT Deadlock

CVE-2019-19192 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19192]

STMicroelectronics

Key Size Overflow

CVE-2019-19196 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19196]

Telink

Zero LTK Installation

CVE-2019-19194 [hXXps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19194]

Telink

For the complete article with additional information, including proof-of-concept code and a video demonstrating the exploitation and crashing of a Fitbit device, please refer to the original article and research paper.

hXXps://www.theregister.co.uk/2020/02/13/dozen_bluetooth_bugs/

hXXps://asset-group.github.io/disclosures/sweyntooth/

hXXps://asset-group.github.io/disclosures/sweyntooth/sweyntooth.pdf

hXXps://youtu.be/Iw8sIBLWE_w

 

 

August 19, 2019:  According to Mexico News Daily, there have been over 61,000 vandalism incidents so far in 2019 in Mexico that have triggered electricity outages. The outages have occurred in Sinaloa, Tamaulipas, Michoacán, Sonora,...

August 19, 2019: According to Mexico News Daily, there have been over 61,000 vandalism incidents so far in 2019 in Mexico that have triggered electricity outages. The outages have occurred in Sinaloa, Tamaulipas, Michoacán, Sonora, Hidalgo, Chihuahua, México state, Tabasco and Baja California. This number is higher than combined outages in the same time period for both 2017 and 2018. The article also noted that the Federal Electricity Commission (CFE) increased land and air patrol areas by 60% last year in response to the increase vandalism.

 

Source: hXXps://mexiconewsdaily.com/news/vandalism-triggered-power-outages/

Summary: Mozilla has reported multiple vulnerabilities in Mozilla Firefox, Firefox Extended Support Release (ESR), and Mozilla Thunderbird, the most severe of which could allow for arbitrary code execution. Depending on the user's privileges, an...

Summary:

Mozilla has reported multiple vulnerabilities in Mozilla Firefox, Firefox Extended Support Release (ESR), and Mozilla Thunderbird, the most severe of which could allow for arbitrary code execution. Depending on the user's privileges, an attacker could then install programs, view, change, or delete data; or create new accounts with full user rights. Users whose accounts having fewer user rights on the system could be less impacted than those who operate with administrative user rights.

  • There are reports of adversarial exploitation of these vulnerabilities in the wild.
  • Software security updates are available.

Systems affected:

  • Mozilla Firefox versions prior to 86
  • Firefox ESR versions prior to 78.8
  • Mozilla Thunderbird versions prior to 78.8


Analysis:

With National Vulnerability Database details at hXXps://nvd.nist.gov/search pending, specific vulnerabilities addressed in available software updates include the following:

  • CVE-2021-23968 - If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs.

  • CVE-2021-23969 - As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin.

  • CVE-2021-23970 - Context-specific code was included in a shared jump table; resulting in assertions being triggered in multithreaded Wasm (WebAssembly) code.

  • CVE-2021-23971 - When processing a redirect with a conflicting Referrer-Policy, Firefox would have adopted the redirect's Referrer-Policy. This would have potentially resulted in more information than intended by the original origin being provided to the destination of the redirect.

  • CVE-2021-23972 - One phishing tactic on the web is to provide a link with HTTP Auth. For example https://www.phishingtarget.com@evil.com. To mitigate this type of attack, Firefox will display a warning dialog; however, this warning dialog would not have been displayed if evil.com used a redirect that was cached by the browser.

  • CVE-2021-23973 - When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource.

  • CVE-2021-23974 - The DOMParser API did not properly process <noscript> elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer.

  • CVE-2021-23975 - The developer page about:memory has a Measure function for exploring what object types the browser has allocated and their sizes. When this function was invoked we incorrectly called the sizeof function, instead of using the API method that checks for invalid pointers.

  • CVE-2021-23976 - When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access for UI spoofing and could also lead to cross-origin attacks on targeted websites.
    Note: This issue is a different issue from CVE-2020-26954 and only affected Firefox for Android. Other operating systems are unaffected.

  • CVE-2021-23977 - Firefox for Android suffered from a time-of-check-time-of-use vulnerability that allowed a malicious application to read sensitive data from application directories.
    Note: This issue is only affected Firefox for Android. Other operating systems are unaffected.

  • CVE-2021-23978 - Mozilla developers Alexis Beingessner, Tyson Smith, Nika Layzell, and Mats Palmgren reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

  • CVE-2021-23979 - Mozilla developers Tyson Smith, Lars T Hansen, Valentin Gosu, and Sebastian Hengst reported memory safety bugs present in Firefox 85. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

 

What to Do:

Many home users choose to receive updates automatically, and most organizations orchestrate regular software security updates to maintain end-user software, e.g., Patch Tuesday [hXXps://en.wikipedia.org/wiki/Patch_Tuesday] monthly. Given that there are active adversarial exploits of these issues reported, there is an opportunity to reduce risk with timely software update deployment. 

General recommendations include:

  • Apply appropriate updates provided by Mozilla to vulnerable systems immediately after appropriate testing.

  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.

  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.

  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

  • Apply the Principle of Least Privilege to all systems and services.

 

Comments:

The E-ISAC thanks the MS-ISAC and other partners for advising of this development, and is providing this information for member awareness. The E-ISAC has not established any specified threat to the electricity community based upon these vulnerabilities. We will continue to monitor this situation and provide relevant updates when necessary. Your feedback helps us improve our products for the industry. If you have comments, questions, or if your organization experiences malicious activity, please create a Portal post for rapid community awareness or directly contact E-ISAC Watch Operations [mailto:operations[@]eisac.com] at operations@eisac.com or 202-790-6000.

 

References:

 

On May 9 th , threat-research company Advanced Intelligence, LLC, published a report on threat actors “Fxmsp,” who claim to have breached three leading antivirus companies. According to the article, on April 24 th Fxmsp extracted source...

On May 9th, threat-research company Advanced Intelligence, LLC, published a report [hXXps://www.advanced-intel.com/blog/top-tier-russian-hacking-collective-claims-breaches-of-three-major-anti-virus-companies] on threat actors “Fxmsp,” who claim to have breached three leading antivirus companies. According to the article, on April 24th Fxmsp extracted source code from antivirus software, artificial intelligence, and security plugins from those three companies. Fxmsp offered screenshots of the companies’ folders (30 TB), which appeared to contain information about their development documentation, artificial intelligence model, web security software, and antivirus software base code.

The article states that Fxmsp’s known TTPs include accessing network environments via remote desktop protocol servers and exposed Active Directory. The E-ISAC is unaware of matching activity found in the electricity sector.

More information can be found here [hXXps://arstechnica.com/information-technology/2019/05/hackers-breached-3-us-antivirus-companies-researchers-reveal/].

A team of ICS experts who spent the past year studying and re-creating the so-called TRITON/TRISIS malware that targeted a Schneider Electric safety instrumented system (SIS) at an oil and gas petrochemical plant has developed open source tools for...

A team of ICS experts who spent the past year studying and re-creating the so-called TRITON/TRISIS malware that targeted a Schneider Electric safety instrumented system (SIS) at an oil and gas petrochemical plant has developed open source tools for detecting it.

The researchers demonstrated how the malware works, as well as a simulation of how it could be used to wage a destructive attack. Nozomi Networks recently released the TriStation Protocol Plug-in for Wireshark that the researchers wrote to dissect the Triconex system's proprietary TriStation protocol. The free tool can detect TRITON malware communicating in the network, as well as gather intelligence on the communication, translate function codes, and extract PLC programs that it is transmitting. 

They subsequently added a second free TRITON defense tool, the Triconex Honeypot Tool, which simulates the controller so that ICS organizations can set up SIS lures (honeypots) to detect TRITON reconnaissance scans and attack attempts on their safety networks. 

While analyzing TRITON, the Nozomi researchers also stumbled on a built-in backdoor maintenance function in the Triconex TriStation 1131 version 4.9 controller.

"We also found two undocumented power users with hard-coded credentials," Nozomi wrote in a blog post today. "One of the power user's login enabled a hidden menu, which from an attacker's perspective, could be useful."

The Centers for Disease Control and Prevention (CDC) has made a connection between COVID-19 and Multi-System Inflammatory Syndrome in Children (MIS-C).    The U.S. Centers for Disease Control and Prevention (CDC) on Thursday released...

The Centers for Disease Control and Prevention (CDC) has made a connection between COVID-19 and Multi-System Inflammatory Syndrome in Children (MIS-C). 

 

The U.S. Centers for Disease Control and Prevention (CDC) on Thursday released guidance that schools, businesses, and other organizations can use as states reopen from coronavirus shutdowns.

 

CDC issued a health advisory to doctors across the country Thursday advising them to be on the lookout for a troubling new syndrome that may be associated with COVID-19 infection.

 

The syndrome, called multisystem inflammatory syndrome in children (MIS-C), has been seen in children across Europe and in at least 18 states, plus Washington, D.C.

 

"In early May 2020, the New York City Department of Health and Mental Hygiene received reports of children with multisystem inflammatory syndrome," the CDC health advisory said. "There is limited information currently available about risk factors, pathogenesis, clinical course, and treatment for MIS-C," it said.

 

"CDC is requesting healthcare providers report suspected cases to public health authorities to better characterize this newly recognized condition in the pediatric population," the advisory said.

 

 

 

 

 

Traditional Media Sources 

 

 

http://tinyurl.com/y9hpfea6

 

https://www.healthychildren.org/

Summary: On September 30 th , 2020, the Cybersecurity and Infrastructure Security Agency (CISA) and the  Multi-State Information Sharing & Analysis Center (MS-ISAC)  have released a joint  Ransomware Guide  that details...

Summary:

On September 30th, 2020, the Cybersecurity and Infrastructure Security Agency (CISA) and the Multi-State Information Sharing & Analysis Center (MS-ISAC) [hXXps://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDEsInVyaSI6ImJwMjpjbGljayIsImJ1bGxldGluX2lkIjoiMjAyMDA5MzAuMjc5OTMzNTEiLCJ1cmwiOiJodHRwczovL3d3dy5jaXNlY3VyaXR5Lm9yZy9tcy1pc2FjLyJ9.7v2XSX1JNtnMTrXq4tQn8_KE1SGHnNUOROR5WE3vTKY/s/1193534695/br/86179474531-l] have released a joint Ransomware Guide [hXXps://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDIsInVyaSI6ImJwMjpjbGljayIsImJ1bGxldGluX2lkIjoiMjAyMDA5MzAuMjc5OTMzNTEiLCJ1cmwiOiJodHRwczovL3d3dy5jaXNhLmdvdi9wdWJsaWNhdGlvbi9yYW5zb213YXJlLWd1aWRlIn0.NUO8HfPvxdkwGTNC8lOYL3e4gBFLzz5K5SImnlNqADk/s/1193534695/br/86179474531-l] that details practices that organizations should continuously engage in to help manage the risk posed by ransomware and other cyber threats. The in-depth guide provides actionable best practices for ransomware prevention as well as a ransomware response checklist that can serve as a ransomware-specific addendum to organization cyber incident response plans.

CISA encourages users and administrators to review the Ransomware Guide [hXXps://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDMsInVyaSI6ImJwMjpjbGljayIsImJ1bGxldGluX2lkIjoiMjAyMDA5MzAuMjc5OTMzNTEiLCJ1cmwiOiJodHRwczovL3d3dy5jaXNhLmdvdi9wdWJsaWNhdGlvbi9yYW5zb213YXJlLWd1aWRlIn0.pxB81LrotFbFoTH3Ou1eAfLdf4Gv4G1kIQmc0JCIklo/s/1193534695/br/86179474531-l] and CISA’s Ransomware webpage [hXXps://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDQsInVyaSI6ImJwMjpjbGljayIsImJ1bGxldGluX2lkIjoiMjAyMDA5MzAuMjc5OTMzNTEiLCJ1cmwiOiJodHRwczovL3VzLWNlcnQuY2lzYS5nb3YvUmFuc29td2FyZSJ9.WFYEQh4Joyt5B_BzP4DtxexVgHwats0q03cdcNF1hdI/s/1193534695/br/86179474531-l] for additional information.

E-ISAC is re-sharing this information for your situational awareness.

Comment:

If any adversarial action is experienced due to ransomware or any other cyber threat, contact the E-ISAC Watch Operations Team [mailto:operations[@]eisac.com], and create a Portal Post for instant community awareness.

References:

Cybersecurity and Infrastructure Security Agency (CISA). CISA Publication. “Ransomware Guide”. September 30, 2020. hXXps://www.cisa.gov/publication/ransomware-guide [hXXps://www.cisa.gov/publication/ransomware-guide%20]  

Cybersecurity and Infrastructure Security Agency (CISA) and Multi-State Information Sharing & Analysis Center (MS-ISAC). “Ransomware Guide”. September 30, 2020. hXXps://www.cisa.gov/sites/default/files/publications/CISA_MS-ISAC_Ransomware%20Guide_S508C.pdf [hXXps://www.cisa.gov/sites/default/files/publications/CISA_MS-ISAC_Ransomware%20Guide_S508C.pdf]

The Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA) has issued a document describing steps for company executives to consider in order to reduce physical, cyber, and supply chain issues resulting from...

The Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA) has issued a document describing steps for company executives to consider in order to reduce physical, cyber, and supply chain issues resulting from COVID-19. The document is intended for widest distribution and may assist in preparing for any potential impacts to your company.

The document is attached to this post for your convenience. It is important to note that this was distributed broadly to critical infrastructure owners and operators, and not being specifically aimed at our industry.

The Department of Homeland Security has developed a fact sheet entitled “Countering Unmanned Aircraft Systems Legal Authorities” designed to assist in implementing the Preventing Emerging Threats Act of 2018 . The fact sheet highlights...

The Department of Homeland Security has developed a fact sheet entitled “Countering Unmanned Aircraft Systems Legal Authorities” designed to assist in implementing the Preventing Emerging Threats Act of 2018. The fact sheet highlights how DHS will implement the act appropriately to counter UAS that may present a threat, including information such as defense techniques, authorized locations, privacy considerations, and next steps. We have attached the factsheet for members’ continued awareness of UAS and Counter UAS activities.

According to multiple open source websites, the Country of Georgia was hit with a cyber-attack that knocked out thousands of websites, as well as a national television station.  Court websites containing case materials and personal data have...

According to multiple open source websites, the Country of Georgia was hit with a cyber-attack that knocked out thousands of websites, as well as a national television station. 

Court websites containing case materials and personal data have also been attacked, as well as the presidential website.  The origin of the attack, and who was behind it, are not yet known at this time.

At present, the energy sector infrastructure has not been targeted; however, the E-ISAC will continue to monitor for additional developments and provide updates when necessary.