Vulnerabilities > CVE-2023-38831 - Unspecified vulnerability in Rarlab Winrar
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
Related news
- WinRAR Security Flaw Exploited in Zero-Day Attacks to Target Traders (source)
- Google links WinRAR exploitation to multiple state hacking groups (source)
- State-sponsored APTs are leveraging WinRAR bug (source)
- Google links WinRAR exploitation to Russian, Chinese state hackers (source)
- Google TAG Detects State-Backed Threat Actors Exploiting WinRAR Flaw (source)
- SideCopy Exploiting WinRAR Flaw in Attacks Targeting Indian Government Entities (source)
- Russian hackers exploiting Outlook bug to hijack Exchange accounts (source)
- Russian hackers use old Outlook vulnerability to target Polish orgs (CVE-2023-23397) (source)
- Fancy Bear goes phishing in US, European high-value networks (source)
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/