CVE-2018-20250: WinRAR Absolute Path Traversal Vulnerability
High · CVSS 7.8 (CVSS 3.1)KEV known exploitedEPSS 96.0%, 100th percentilePublished Updated Assigner: checkpoint
In CISA’s Known Exploited Vulnerabilities catalog: WinRAR Absolute Path Traversal Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
Required action: Apply updates per vendor instructions.
Description
In WinRAR versions prior to and including 5.61, There is path traversal vulnerability when crafting the filename field of the ACE format (in UNACEV2.dll). When the filename field is manipulated with specific patterns, the destination (extraction) folder is ignored, thus treating the filename as an absolute path.
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · CWE-36
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Check Point Software Technologies Ltd.: WinRAR
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Ex… (opens in new tab)
- github.com/blau72/CVE-2018-20250-WinRAR-ACE (opens in new tab)
- research.checkpoint.com/extracting-code-execution-from-winrar/ (opens in new tab)
- www.exploit-db.com/exploits/46552/ (opens in new tab)
- www.exploit-db.com/exploits/46756/ (opens in new tab)
- www.win-rar.com/whatsnew.html (opens in new tab)
- www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace (opens in new tab)
- www.securityfocus.com/bid/106948 (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)