CVE-2022-31147 : Vulnerability Insights and Analysis

The jQuery Validation Plugin (jquery-validation) prior to version 1.19.5 is vulnerable to regular expression denial of service (ReDoS) due to an incomplete fix for CVE-2021-43306. Users are advised to upgrade to version 1.19.5 to fix this vulnerability.

Understanding CVE-2022-31147

This CVE identifies a vulnerability in the jQuery Validation Plugin related to regular expression denial of service (ReDoS) when arbitrary input is provided to the url2 method.

What is CVE-2022-31147?

The vulnerability in jquery-validation before version 1.19.5 allows attackers to exploit ReDoS by supplying malicious input to the url2 method, leading to potential denial of service.

The Impact of CVE-2022-31147

With a CVSS base score of 7.5 (High), this vulnerability can have a significant impact on the availability of affected systems without the need for user interaction.

Technical Details of CVE-2022-31147

The technical details of this CVE include vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows for ReDoS attacks by leveraging incomplete fix for CVE-2021-43306 in jquery-validation versions prior to 1.19.5.

Affected Systems and Versions

jquery-validation versions < 1.19.5 are affected by this vulnerability, exposing them to potential ReDoS attacks.

Exploitation Mechanism

Attackers can exploit this vulnerability by supplying crafted input to the url2 method, causing regular expression processing to consume excessive CPU time.

Mitigation and Prevention

To address CVE-2022-31147, immediate steps should be taken, followed by long-term security practices and application of necessary patches.

Immediate Steps to Take

Users should upgrade to jquery-validation version 1.19.5 to mitigate the risk of ReDoS attacks.

Long-Term Security Practices

Implement robust input validation mechanisms and stay informed about security updates related to jquery-validation.

Patching and Updates

Regularly check for updates from the jquery-validation project and apply patches promptly to safeguard against known vulnerabilities.