Path Traversal in Check Point Software Technologies Ltd. Winrar
CVE-2018-20250
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 (extr…
EPSS: 0.935 (99.8th percentile) — read the EPSS interpretation.
Affected products
- Check Point Software Technologies Ltd. Winrar — versions All versions prior and including 5.61
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- github.com/blau72/CVE-2018-20250-WinRAR-ACE (x_refsource_MISC)
- research.checkpoint.com/extracting-code-execution-from-winrar/ (x_refsource_MISC)
- 46552 (exploit, x_refsource_EXPLOIT-DB)
- 106948 (vdb-entry, x_refsource_BID)
- www.win-rar.com/whatsnew.html (x_refsource_MISC)
- packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-… (x_refsource_MISC)
- www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace (x_refsource_MISC)
- 46756 (exploit, x_refsource_EXPLOIT-DB)
Frequently asked questions
- What is CVE-2018-20250?
- CVE-2018-20250 is a vulnerability in Check Point Software Technologies Ltd. Winrar, classified under Absolute Path Traversal. Published 2019-02-05.
- Is CVE-2018-20250 known to be exploited?
- Yes. CVE-2018-20250 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-02-15), indicating it is being actively exploited. 152 public proof-of-concept repositories are indexed.