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Vulnerability DatabaseCVE-2022-31147
CVE-2022-31147:
JavaScript vulnerability analysis and mitigation
Overview
The jQuery Validation Plugin (jquery-validation) versions prior to 1.19.5 contained a regular expression denial of service (ReDoS) vulnerability when an attacker could supply arbitrary input to the url2 method. This vulnerability (CVE-2022-31147) was discovered on June 23, 2022, and was an incomplete fix for a previous vulnerability (CVE-2021-43306). The issue was fixed with the release of version 1.19.5 on July 1, 2022 (GitHub Advisory).
Technical details
The vulnerability is caused by an exponential ReDoS pattern in the url2 validation method. The issue was identified using CodeQL analysis, which revealed that the previous fix for CVE-2021-43306 was incomplete. The vulnerability can be triggered when processing certain URL patterns, causing the regular expression engine to enter a state of excessive backtracking (Security Lab).
Impact
When exploited, this vulnerability could lead to a Denial of Service condition by causing the regular expression engine to enter an exponential processing state, potentially making the application unresponsive (Security Lab).
Mitigation and workarounds
Users should upgrade to jquery-validation version 1.19.5 or later, which contains the fix for this vulnerability. The fix involves updating the regular expression pattern used in the url2 validation method to prevent the exponential backtracking issue (GitHub Patch).
Additional resources
Source: This report was generated using AI
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