Description

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has identified and added two exploited vulnerabilities to its Known Exploited Vulnerabilities catalog. The first vulnerability, CVE-2023-7101, affects versions 0.65 and older of the Spreadsheet::ParseExcel library, posing a remote code execution risk due to unvalidated input from an Excel file into an "eval" string. This flaw exposes systems that utilize the library, including Barracuda ESG (Email Security Gateway), which was targeted by Chinese hackers leveraging this vulnerability in late December. The attackers, identified as UNC4841, deployed ‘SeaSpy’ and ‘Saltwater’ malware via the exploit. Barracuda has since applied mitigations and released an update (version 0.66) to address this issue. The second vulnerability, CVE-2023-7024, impacts Google Chrome's WebRTC, presenting a heap buffer overflow risk that could lead to crashes or code execution. This vulnerability was discovered by Google’s Threat Analysis Group (TAG) and was urgently patched in Chrome versions 120.0.6099.129/130 for Windows and 120.0.6099.129 for Mac and Linux on December 20. Notably, this marked the eighth zero-day vulnerability addressed in Chrome for 2023, highlighting ongoing efforts by threat actors to exploit vulnerabilities in the widely-used browser. CISA has mandated federal agencies to address these vulnerabilities by January 23, either by following vendor instructions for mitigation or by discontinuing the use of vulnerable products. The agency's Known Exploited Vulnerabilities catalog serves as a critical resource for global organizations, aiding in vulnerability management and prioritization to enhance cybersecurity measures.