CVE-2022-25927 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2022-25927, a vulnerability in the package ua-parser-js that can lead to Regular Expression Denial of Service (ReDoS) through the trim() function.

Understanding CVE-2022-25927

CVE-2022-25927 is a Medium severity vulnerability affecting versions of the package ua-parser-js prior to 0.7.33 and 1.0.33. It can be exploited through Regular Expression Denial of Service (ReDoS) via the trim() function.

What is CVE-2022-25927?

CVE-2022-25927 is a vulnerability in ua-parser-js versions prior to 0.7.33 and 1.0.33 that allows attackers to launch Regular Expression Denial of Service (ReDoS) attacks through the trim() function.

The Impact of CVE-2022-25927

This vulnerability has a CVSS base score of 5.3 (Medium severity) and a base severity rating. It can lead to Availability Impact due to ReDoS attacks, potentially causing service disruptions.

Technical Details of CVE-2022-25927

The vulnerability is categorized under CWE-1333: Regular Expression Denial of Service (ReDoS). The affected package versions include ua-parser-js 0.7.30 to 0.7.32 and 0.8.1 to 1.0.32.

Vulnerability Description

The vulnerability in ua-parser-js allows attackers to trigger ReDoS attacks by exploiting the trim() function in certain versions of the package.

Affected Systems and Versions

Systems using ua-parser-js versions 0.7.30 to 0.7.32 and 0.8.1 to 1.0.32 are vulnerable to this issue, with versions less than 0.7.33 and 1.0.33 being affected.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious input that triggers excessive backtracking when processed by the vulnerable trim() function.

Mitigation and Prevention

It is crucial to take immediate steps to address CVE-2022-25927 and adopt long-term security practices to prevent similar vulnerabilities in the future.

Immediate Steps to Take

Update the ua-parser-js package to versions 0.7.33 or 1.0.33 to mitigate the vulnerability. Regularly monitor for security updates and apply patches promptly.

Long-Term Security Practices

Implement input validation to prevent malicious input that triggers ReDoS attacks. Regularly review and update dependencies to address known vulnerabilities.

Patching and Updates

Stay informed about security advisories for ua-parser-js and other dependencies. Collaborate with the community to address security issues promptly.