CVE-2018-20251

CVSS V2 Medium 4.3 CVSS V3 Medium 5.5
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.
Overview
  • CVE ID
  • CVE-2018-20251
  • Assigner
  • cve@checkpoint.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-02-05T20:29:00
  • Last Modified Date
  • 2019-10-09T23:39:36
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:* 1 OR 5.61
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://www.win-rar.com/whatsnew.html Release Notes Vendor Advisory
http://www.securityfocus.com/bid/106948 VDB Entry Third Party Advisory
https://research.checkpoint.com/extracting-code-execution-from-winrar/ Exploit Third Party Advisory
History
Created Old Value New Value Data Type Notes
2022-05-10 17:04:15 Added to TrackCVE
2022-12-03 17:09:12 2019-02-05T20:29Z 2019-02-05T20:29:00 CVE Published Date updated
2022-12-03 17:09:12 2019-10-09T23:39:36 CVE Modified Date updated
2022-12-03 17:09:12 Modified Vulnerability Status updated