CVE-2018-20251
Last modified
CVE-2018-20251 is a vulnerability of currently unknown severity. In WinRAR versions prior to and including 5.61, there is path traversal vulnerability when crafting the filename field of the ACE format. The UNACE module (UNACEV2.dll) creates files and folders as written in the filename field even when WinRAR validator noticed the traversal attempt and requestd to abort the extraction process. EPSS estimates a 31.53% chance of exploitation in the next 30 days.
Description
In WinRAR versions prior to and including 5.61, there is path traversal vulnerability when crafting the filename field of the ACE format. The UNACE module (UNACEV2.dll) creates files and folders as written in the filename field even when WinRAR validator noticed the traversal attempt and requestd to abort the extraction process. the operation is cancelled only after the folders and files were created but prior to them being written, therefore allowing the attacker to create empty files and folders everywhere in the file system.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Rarlab | Winrar | <= 5.61 |
References
- http://www.securityfocus.com/bid/106948Third Party Advisory, VDB Entry
- https://research.checkpoint.com/extracting-code-execution-from-winrar/Exploit, Third Party Advisory
- https://www.win-rar.com/whatsnew.htmlRelease Notes, Vendor Advisory
- http://www.securityfocus.com/bid/106948Third Party Advisory, VDB Entry
- https://research.checkpoint.com/extracting-code-execution-from-winrar/Exploit, Third Party Advisory
- https://www.win-rar.com/whatsnew.htmlRelease Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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