Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rarlab | Winrar | < 6.23 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.htmlExploitThird Party AdvisoryVDB Entry
- https://blog.google/threat-analysis-group/government-backed-actors-exploiting-wiExploitThird Party Advisory
- https://news.ycombinator.com/item?id=37236100Issue Tracking
- https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-aExploitPress/Media CoverageThird Party Advisory
- https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/ExploitPress/Media CoverageThird Party Advisory
- http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.htmlExploitThird Party AdvisoryVDB Entry
- https://blog.google/threat-analysis-group/government-backed-actors-exploiting-wiExploitThird Party Advisory
- https://news.ycombinator.com/item?id=37236100Issue Tracking
- https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-aExploitPress/Media CoverageThird Party Advisory
- https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/ExploitPress/Media CoverageThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-US Government Resource
FAQ
What is CVE-2023-38831?
CVE-2023-38831 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 (...
How severe is CVE-2023-38831?
CVE-2023-38831 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-38831?
Check the references section above for vendor advisories and patch information. Affected products include: Rarlab Winrar.