Hot off the press! CISA adds CVE-2023-43770 (6.1 medium) Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability to the Known Exploited Vulnerabilities (KEV) Catalog.
🔗 (to be replaced later) https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Why you should care about CVE-2023-43770:
ESET Research previously reported on 25 October 2023 that the Winter Vivern APT was exploiting a similar RoundCube cross-site scripting vulnerability CVE-2023-5631 as a zero-day against European overnmental entities and a think tank.
Hot off the press! CISA adds CVE-2023-4762 (8.8 high Google Chrome Type Confusion in V8 JavaScript Engine) to the Known Exploited Vulnerabilities Catalog.
🔗 (to be replaced later) https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Horizon3 analyzed critical vulnerabilities from the CISA KEV catalog starting from January 2023 through January 2024, categorized the vulnerability root causes, and attempted to analyze if the current efforts in the information security industry match with the current threat vectors being abused.
🔗 https://www.horizon3.ai/analysis-of-2023s-known-exploited-vulnerabilities/
Volexity recently disclosed details related to exploitation of Ivanti Connect Secure VPN, revealing how the attacker chained two zero-day vulnerabilities to achieve remote code execution. When investigating the source of compromise, Volexity employed memory forensics, analyzing a memory sample collected from a suspected compromised VPN device, which allowed Volexity to zero in on the source of the compromise. "The lesson for analysts is to independently verify the integrity and trustworthiness of high-value targets using memory forensics, rather than only relying on tools that run on a potentially compromised device."
🔗 https://www.volexity.com/blog/2024/02/01/how-memory-forensics-revealed-exploitation-of-ivanti-connect-secure-vpn-zero-day-vulnerabilities/
watchTowr reports additional zero-days uncovered on a fully patched Ivanti appliance. No further information due to 90 day vulnerability disclosure policy.
Hot off the press! CISA adds CVE-2022-48618 to the Known Exploited Vulnerabilities (KEV) Catalog.
Apple Multiple Products Improper Authentication Vulnerability: Apple iOS, iPadOS, macOS, tvOS, and watchOS contain an improper authentication vulnerability that allows an attacker with read and write capabilities to bypass Pointer Authentication.
🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog (to be replaced later with official announcement)
There's some degree of cybersecurity-hostility (as opposed to user-friendly) that a company can bury an exploited vulnerability affecting their product in a 2 year old security advisory, and the ONLY reason the general public is aware of it is from a government announcement.
Just your periodic update from Ivanti regarding their CVE-2023-46805 (8.2 high) and CVE-2024-21887 (9.1 critical) zero-days (both disclosed 10 January 2024 as exploited in the wild, has Proofs of Concept, mass exploitation):
"Update 26 January: The targeted release of patches for supported versions is delayed, this delay impacts all subsequent planned patch releases. We are now targeting next week to release a patch for Ivanti Connect Secure (versions 9.1R17x, 9.1R18x, 22.4R2x and 22.5R1.1), Ivanti Policy Secure (versions 9.1R17x, 9.1R18x and 22.5R1x) and ZTA version 22.6R1x.
Patches for supported versions will still be released on a staggered schedule. Instructions on how to upgrade to a supported version will also be provided. The timing of patch release is subject to change as we prioritize the security and quality of each release. Please ensure you are following this article to receive updates as they become available."
🔗 https://forums.ivanti.com/s/article/KB-CVE-2023-46805-Authentication-Bypass-CVE-2024-21887-Command-Injection-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Gateways?language=en_US
CISA issues Emergency Directive 24-01: Mitigate Ivanti Connect Secure and Ivanti Policy Secure Vulnerabilities in response to CVE-2023-46805 (8.2 high, disclosed by Ivanti on 10 January 2024 as exploited zero-days) authentication bypass in Ivanti Connect Secure VPN Version 9.x and 22.x and CVE-2024-21887 (9.1 critical) command injection in Ivanti Connect Secure VPN Version 9.x and 22.x
CISA and FBI released a joint Cybersecurity Advisory (CSA), Known Indicators of Compromise Associated with Androxgh0st Malware, to disseminate known indicators of compromise (IOCs) and tactics, techniques, and procedures (TTPs) associated with threat actors deploying Androxgh0st malware.
🔗 https://www.cisa.gov/news-events/cybersecurity-advisories/aa24-016a
Hot off the press: CISA removed CVE-2022-28958 (D-Link DIR-816L Remote Code Execution Vulnerability) from the Known Exploited Vulnerabilities Catalog. The KEV Team determined that CVE-2022-28958 is no longer a valid vulnerability, as the CVE record has since been rejected by the issuing CVE Numbering Authority.
Dark Reading: "Exploited Vulnerabilities Can Take Months to Make KEV List" 🤔 The author himself admits that there were exploitation "attempts," and "likely exploited." I think the keyword in KEV Catalog is Known. @todb I figured you'd have a good laugh.