CVE-2023-38831: RARLAB WinRAR Code Execution Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: RARLAB WinRAR Code Execution Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
RARLAB WinRAR before 6.23 allows attackers to execute arbitrary code when a user attempts to view a benign file within a ZIP archive. The issue occurs because a ZIP archive may include a benign file (such as an ordinary .JPG file) and also a folder that has the same name as the benign file, and the contents of the folder (which may include executable content) are processed during an attempt to access only the benign file. This was exploited in the wild in April through October 2023.
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
rarlab: winrar
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html (opens in new tab)
- blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vuln… (opens in new tab)
- news.ycombinator.com/item (opens in new tab)
- www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-a… (opens in new tab)
- www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/ (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)