CVE-2021-4269 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2021-4269, a vulnerability found in SimpleRisk that leads to cross-site scripting through the function checkAndSetValidation of the file simplerisk/js/common.js.

Understanding CVE-2021-4269

This section delves into what CVE-2021-4269 is and the impact it can have on systems.

What is CVE-2021-4269?

CVE-2021-4269 is a vulnerability in the SimpleRisk software affecting the function checkAndSetValidation in the common.js file, allowing for cross-site scripting attacks.

The Impact of CVE-2021-4269

The vulnerability allows remote attackers to execute cross-site scripting attacks by manipulating the 'title' argument.

Technical Details of CVE-2021-4269

Explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper neutralization, potentially leading to injection and cross-site scripting (CWE-707 -> CWE-74 -> CWE-79).

Affected Systems and Versions

The vulnerability affects SimpleRisk software, version 20220306-001, and possibly earlier versions.

Exploitation Mechanism

Attackers can remotely initiate the attack by manipulating the 'title' argument through the function checkAndSetValidation.

Mitigation and Prevention

Learn about the immediate steps to take and long-term security practices to safeguard against CVE-2021-4269.

Immediate Steps to Take

To address the issue, upgrade the affected component to version 20220306-001, which contains the necessary patch (591405b4ed160fbefc1dca1e55c5745079a7bb48).

Long-Term Security Practices

Employ secure coding practices and keep software updated to mitigate the risks of cross-site scripting vulnerabilities.

Patching and Updates

Regularly apply security patches and updates to ensure systems are protected against known vulnerabilities.