CVE-2018-20250
WinRAR Absolute Path Traversal Vulnerability - [Actively Exploited]
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.
INFO
Published Date :
Feb. 5, 2019, 8:29 p.m.
Last Modified :
March 13, 2025, 5:07 p.m.
Remotely Exploit :
No
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
WinRAR Absolute Path Traversal vulnerability leads to Remote Code Execution
Apply updates per vendor instructions.
https://nvd.nist.gov/vuln/detail/CVE-2018-20250
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade to WinRAR version 5.70 Beta 1 or later.
Public PoC/Exploit Available at Github
CVE-2018-20250 has a 120 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-20250.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-20250 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-20250
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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This is my personal collection of malware development notes, tools, code snippets, and resources I explore and learn from. It’s my go-to place to keep everything organized and handy.
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Python Batchfile PowerShell VBScript
Latest CVEs with their Proof of Concept exploits.
Python
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C#
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Python
渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypass oa-getshell cve-cms
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Python
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Python C
RedTeam link
soapffz 个人博客blog的历史文章备份
Python
DayOne: Critical Vulnerability Root Cause Analysis Platform
Python JavaScript Ruby HTML Assembly Makefile C Objective-C Shell Dockerfile
soapffz 个人博客blog的历史文章备份
Python
100 Best Free Red Team Tools – 2023
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-20250 vulnerability anywhere in the article.
-
CybersecurityNews
New Zip Slip Vulnerability Allows Attackers to Manipulate ZIP Files During Decompression
A newly observed variant of the Zip Slip vulnerability has emerged, enabling threat actors to exploit path traversal flaws in widely used decompression utilities. Exploits leveraging this vulnerabilit ... Read more
The following table lists the changes that have been made to the
CVE-2018-20250 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Mar. 13, 2025
Action Type Old Value New Value -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 07, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H -
Modified Analysis by [email protected]
Jan. 27, 2025
Action Type Old Value New Value -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html Added Reference http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace Added Reference http://www.securityfocus.com/bid/106948 Added Reference https://github.com/blau72/CVE-2018-20250-WinRAR-ACE Added Reference https://research.checkpoint.com/extracting-code-execution-from-winrar/ Added Reference https://www.exploit-db.com/exploits/46552/ Added Reference https://www.exploit-db.com/exploits/46756/ Added Reference https://www.win-rar.com/whatsnew.html -
Modified Analysis by [email protected]
Jul. 24, 2024
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html Third Party Advisory, VDB Entry http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://www.securityfocus.com/bid/106948 Third Party Advisory, VDB Entry http://www.securityfocus.com/bid/106948 Broken Link, Third Party Advisory, VDB Entry Changed Reference Type https://research.checkpoint.com/extracting-code-execution-from-winrar/ Exploit, Third Party Advisory https://research.checkpoint.com/extracting-code-execution-from-winrar/ Exploit, Press/Media Coverage, Third Party Advisory Changed Reference Type https://www.win-rar.com/whatsnew.html Vendor Advisory https://www.win-rar.com/whatsnew.html Release Notes -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CWE Check Point Software Technologies Ltd. CWE-36 -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-20 CWE-22 CWE-22 -
Modified Analysis by [email protected]
Apr. 26, 2019
Action Type Old Value New Value Changed Reference Type http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace No Types Assigned http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace Third Party Advisory Changed Reference Type http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html No Types Assigned http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html Third Party Advisory, VDB Entry Changed Reference Type https://www.exploit-db.com/exploits/46552/ Exploit, Third Party Advisory https://www.exploit-db.com/exploits/46552/ Exploit, Third Party Advisory, VDB Entry Changed Reference Type https://www.exploit-db.com/exploits/46756/ No Types Assigned https://www.exploit-db.com/exploits/46756/ Exploit, Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
Apr. 25, 2019
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/46756/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 25, 2019
Action Type Old Value New Value Added Reference http://www.rapid7.com/db/modules/exploit/windows/fileformat/winrar_ace [No Types Assigned] -
CVE Modified by [email protected]
Apr. 24, 2019
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/152618/RARLAB-WinRAR-ACE-Format-Input-Validation-Remote-Code-Execution.html [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 21, 2019
Action Type Old Value New Value Changed Reference Type https://research.checkpoint.com/extracting-code-execution-from-winrar/ No Types Assigned https://research.checkpoint.com/extracting-code-execution-from-winrar/ Exploit, Third Party Advisory Changed Reference Type https://www.exploit-db.com/exploits/46552/ No Types Assigned https://www.exploit-db.com/exploits/46552/ Exploit, Third Party Advisory Changed Reference Type https://github.com/blau72/CVE-2018-20250-WinRAR-ACE No Types Assigned https://github.com/blau72/CVE-2018-20250-WinRAR-ACE Exploit, Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/106948 Third Party Advisory http://www.securityfocus.com/bid/106948 Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
Mar. 21, 2019
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/46552/ [No Types Assigned] -
CVE Modified by [email protected]
Mar. 15, 2019
Action Type Old Value New Value Added Reference https://github.com/blau72/CVE-2018-20250-WinRAR-ACE [No Types Assigned] -
CVE Modified by [email protected]
Mar. 14, 2019
Action Type Old Value New Value Changed Description By crafting the filename field of the ACE format, the destination folder (extraction folder) is ignored, and the relative path in the filename field becomes an absolute Path. This logical bug, allows the extraction of a file to an arbitrary location which is effectively code execution. 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. Added Reference https://research.checkpoint.com/extracting-code-execution-from-winrar/ [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 22, 2019
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type http://www.securityfocus.com/bid/106948 No Types Assigned http://www.securityfocus.com/bid/106948 Third Party Advisory Changed Reference Type https://www.win-rar.com/whatsnew.html No Types Assigned https://www.win-rar.com/whatsnew.html Vendor Advisory Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:a:rarlab:winrar:*:*:*:*:*:*:*:* versions up to (including) 5.61 -
CVE Modified by [email protected]
Feb. 09, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/106948 [No Types Assigned]
Vulnerability Scoring Details
Base CVSS Score: 7.8
Base CVSS Score: 6.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
93.38 }} 0.27%
score
0.99811
percentile