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
Weakness Enumerations
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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-20251 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20251 |
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 |