CVE-2022-31036 Explained : Impact and Mitigation
Discover how CVE-2022-31036 impacts Argo CD versions 1.3.0 to 2.4.0, allowing malicious actors to access sensitive YAML files. Learn about the mitigation steps.
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. A vulnerability, identified as CVE-2022-31036, affects various versions of Argo CD, potentially allowing a malicious user to leak sensitive YAML files from Argo CD's repo-server.
Understanding CVE-2022-31036
This vulnerability in Argo CD could be exploited by a user with repository write access to disclose sensitive information from the server, impacting the confidentiality of YAML files.
What is CVE-2022-31036?
Argo CD versions starting from 1.3.0 are susceptible to a symlink following bug. It enables a malicious user to access YAML files from the repo-server, potentially compromising sensitive data.
The Impact of CVE-2022-31036
The vulnerability poses a medium severity risk with a CVSS base score of 4.3. It affects the confidentiality of data by allowing unauthorized access to manifest files and YAML-formatted secrets.
Technical Details of CVE-2022-31036
The CVE-2022-31036 vulnerability is primarily categorized under CWE-20 (Improper Input Validation) and CWE-61 (UNIX Symbolic Link Following).
Vulnerability Description
The vulnerability arises from improper symlink handling in Argo CD, allowing an attacker to read sensitive YAML files.
Affected Systems and Versions
Versions of Argo CD from 1.3.0 to 2.4.0 are impacted, with specific version ranges detailed in the advisory.
Exploitation Mechanism
A malicious user with repository write access can commit a symlink pointing to an out-of-bounds file, granting access to potentially decrypted files and YAML-formatted secrets.
Mitigation and Prevention
To protect your systems from CVE-2022-31036, immediate actions as well as long-term security practices are recommended.
Immediate Steps to Take
Users are advised to update Argo CD to patched versions (v2.4.1, v2.3.5, v2.2.10, v2.1.16) to mitigate the symlink following vulnerability.
Long-Term Security Practices
Regular security audits and monitoring, along with appropriate permission controls and access restrictions, can enhance overall system security.
Patching and Updates
Ensure timely patching of software and follow vendor recommendations to address security vulnerabilities effectively.