CVE-2023-38831: 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...

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.

Classification

CVE ID: CVE-2023-38831

Affected Products

Vendor: n/a

Product: n/a

Exploit Prediction Scoring System (EPSS)

EPSS Score: 48.31% (probability of being exploited)

EPSS Percentile: 97.62% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/
https://www.bleepingcomputer.com/news/security/winrar-zero-day-exploited-since-april-to-hack-trading-accounts/
https://news.ycombinator.com/item?id=37236100
http://packetstormsecurity.com/files/174573/WinRAR-Remote-Code-Execution.html
https://blog.google/threat-analysis-group/government-backed-actors-exploiting-winrar-vulnerability/

Timeline