CVE-2022-23655 : What You Need to Know
Stay informed about CVE-2022-23655 affecting OctoberCMS. Learn about the impact, technical details, and mitigation steps to secure your installations against this vulnerability.
OctoberCMS is a self-hosted CMS platform based on the Laravel PHP Framework. The CVE-2022-23655 vulnerability in OctoberCMS allows non-authoritative gateway servers to be used to exfiltrate user private keys due to the lack of validation of gateway server signatures. This article provides detailed insights to help users understand and address this security issue.
Understanding CVE-2022-23655
This section delves into the impact and technical details of the CVE-2022-23655 vulnerability in OctoberCMS.
What is CVE-2022-23655?
Affected versions of OctoberCMS fail to validate gateway server signatures, enabling the exploitation by non-authoritative servers to exfiltrate user private keys.
The Impact of CVE-2022-23655
The vulnerability poses a medium severity risk with a CVSS base score of 4.8. It has a high impact on confidentiality, low privileges required for exploitation, and requires user interaction.
Technical Details of CVE-2022-23655
This section outlines the technical aspects of the CVE-2022-23655 vulnerability in OctoberCMS.
Vulnerability Description
The issue arises from the improper verification of cryptographic signatures, categorized under CWE-347.
Affected Systems and Versions
Versions of OctoberCMS affected include '>= 1.1.0, < 1.1.11' and '< 1.0.475'.
Exploitation Mechanism
Attackers can exploit this vulnerability via network access, with high attack complexity and user interaction required.
Mitigation and Prevention
To address CVE-2022-23655, users should take immediate steps and implement long-term security practices to secure their installations.
Immediate Steps to Take
Users are advised to upgrade their OctoberCMS installations to build 474 or v1.1.10. A patch (e3b455ad587282f0fbcb7763c6d9c3d000ca1e6a) is available to add server signature validation.
Long-Term Security Practices
Implement regular security updates, conduct security audits, and follow security best practices to enhance the overall security posture.
Patching and Updates
Regularly monitor for security advisories and apply patches promptly to mitigate known vulnerabilities.