CVE-2023-25163 : Security Advisory and Response

This CVE-2023-25163 involves Argo CD leaking repository credentials in user-facing error messages and logs. The vulnerability affects all versions of Argo CD starting from v2.6.0-rc1.

Understanding CVE-2023-25163

This section provides an overview of what CVE-2023-25163 entails, including its impact, technical details, and mitigation strategies.

What is CVE-2023-25163?

Argo CD, a declarative GitOps continuous delivery tool for Kubernetes, contains a flaw where repository access credentials are inadvertently exposed in error messages. These messages are visible to users and are also logged. The issue arises when a user tries to create or update an application via the Argo CD API, UI, or CLI. The error messages may reveal sensitive information if the user has appropriate RBAC access levels.

The Impact of CVE-2023-25163

The vulnerability poses a medium severity threat, with high confidentiality impact. If exploited, an attacker with certain access permissions could extract repository credentials from error messages. This could lead to unauthorized access to sensitive information within the system.

Technical Details of CVE-2023-25163

This section delves into the specific technical aspects of the vulnerability, including its description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Argo CD version 2.6.0-rc1 and above allows repository credentials to be exposed in error messages during application creation or update processes. This information leakage can be potentially exploited by unauthorized users.

Affected Systems and Versions

Vendor: argoproj
Product: argo-cd
Affected Versions: >= 2.6.0-rc1, < 2.6.1

Exploitation Mechanism

To exploit this vulnerability, an attacker needs the relevant RBAC access to trigger error messages containing repository credentials. By exploiting this flaw, an attacker could gain unauthorized access to sensitive repository information.

Mitigation and Prevention

This section outlines the steps that users can take to mitigate the risks associated with CVE-2023-25163 and prevent potential exploitation.

Immediate Steps to Take

Users are strongly advised to upgrade to version 2.6.1 of Argo CD, as a patch has been released to address this vulnerability. Updating to the patched version will help prevent further exposure of repository credentials in error messages.

Long-Term Security Practices

It is recommended to follow secure coding practices, implement RBAC controls effectively, and regularly update software to address known vulnerabilities and enhance security posture.

Patching and Updates

Staying informed about security advisories and promptly applying patches and updates released by the vendor is crucial in maintaining a secure environment and safeguarding against potential threats.