CVE-2022-31102 : Vulnerability Insights and Analysis

Argo CD, a declarative GitOps continuous delivery tool for Kubernetes, versions 2.3.0 to 2.3.6 and 2.4.0 to 2.4.5 are vulnerable to a cross-site scripting (XSS) bug. This vulnerability allows an attacker to inject arbitrary JavaScript in the

/auth/callback

page of a victim's browser when single sign on (SSO) is enabled. Find out more about the impact, technical details, and mitigation steps for CVE-2022-31102.

Understanding CVE-2022-31102

This section provides an overview of the vulnerability affecting Argo CD single sign on users.

What is CVE-2022-31102?

Argo CD versions 2.3.0 to 2.3.6 and 2.4.0 to 2.4.5 are susceptible to a cross-site scripting (XSS) vulnerability enabling attackers to execute arbitrary JavaScript in the victim's browser.

The Impact of CVE-2022-31102

The CVE carries low severity as exploitation requires access to the API server's encryption key. Successful XSS exploitation could lead to impersonation, but it does not confer additional privileges beyond what the encryption key provides.

Technical Details of CVE-2022-31102

This section delves into the specifics of the vulnerability in Argo CD.

Vulnerability Description

The XSS bug in Argo CD versions 2.3.0-2.3.6 and 2.4.0-2.4.5 allows attackers to inject malicious JavaScript code.

Affected Systems and Versions

Argo CD instances with SSO enabled running versions 2.3.0-2.3.6 and 2.4.0-2.4.5 are impacted by this vulnerability.

Exploitation Mechanism

Attackers must possess the API server's encryption key, ability to add cookies to victims' browsers, and convince victims to visit a malicious

/auth/callback

link to exploit this vulnerability.

Mitigation and Prevention

Learn how to address and prevent the CVE-2022-31102 vulnerability in Argo CD.

Immediate Steps to Take

Update affected Argo CD instances to patched versions 2.4.5 or 2.3.6 to mitigate the XSS risk.

Long-Term Security Practices

Ensure API server encryption keys are secure, monitor for malicious activity, and follow best practices for securing SSO configurations.

Patching and Updates

Stay current on Argo CD releases and security advisories to promptly apply patches and updates to safeguard against known vulnerabilities.