CVE-2022-23733 : Security Advisory and Response

A stored XSS vulnerability was identified in GitHub Enterprise Server that allowed the injection of arbitrary attributes. This vulnerability affected versions prior to 3.6 and was fixed in versions 3.3.11, 3.4.6, and 3.5.3.

Understanding CVE-2022-23733

This CVE involves a stored XSS vulnerability impacting GitHub Enterprise Server, allowing the injection of arbitrary attributes.

What is CVE-2022-23733?

CVE-2022-23733 is a stored XSS vulnerability in GitHub Enterprise Server that enabled the injection of arbitrary attributes, affecting versions before 3.6.

The Impact of CVE-2022-23733

The vulnerability posed a risk of injecting malicious attributes, potentially leading to unauthorized actions within the affected systems.

Technical Details of CVE-2022-23733

This section provides more insight into the vulnerability's description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability allowed malicious actors to inject arbitrary attributes due to insufficient input sanitization in GitHub Enterprise Server.

Affected Systems and Versions

GitHub Enterprise Server versions 3.3 to 3.5 were impacted, with versions 3.3.11, 3.4.6, and 3.5.3 being particularly vulnerable.

Exploitation Mechanism

The exploit involved bypassing GitHub's Content Security Policy (CSP) to inject unauthorized attributes.

Mitigation and Prevention

To safeguard your systems from CVE-2022-23733, here are some crucial steps to take.

Immediate Steps to Take

Update your GitHub Enterprise Server to versions 3.3.11, 3.4.6, or 3.5.3 to mitigate the risk of this stored XSS vulnerability.

Long-Term Security Practices

Implement robust input validation mechanisms and security best practices to prevent XSS attacks in the future.

Patching and Updates

Regularly apply security patches and updates provided by GitHub to address known vulnerabilities and enhance system security.