CVE-2022-29161 Explained : Impact and Mitigation
Discover the impact of CVE-2022-29161 on XWiki Platform due to the use of unsafe cryptographic algorithms. Learn about mitigation steps and upgrades to enhance system security.
A vulnerability has been identified in XWiki Platform that affects versions prior to 13.10.6, between 14.0.0 and 14.3.1, and between 14.4.0 and 14.4-rc-1 due to the use of a deprecated cryptographic algorithm.
Understanding CVE-2022-29161
This CVE highlights a security issue in XWiki Platform related to the signing of X509 certificates using an unsafe cryptographic algorithm.
What is CVE-2022-29161?
The XWiki Crypto API in XWiki Platform generates X509 certificates using SHA1 with RSA, which poses a security risk due to potential collisions with SHA1. This vulnerability has been patched in versions 13.10.6, 14.3.1, and 14.4-rc-1 by switching to SHA256 with RSA for certificate signatures.
The Impact of CVE-2022-29161
The CVSS v3.1 base score for this vulnerability is 5.4, categorizing it as of medium severity. The attack complexity is high, but no user privileges are required. It can impact confidentiality and integrity with a low severity level.
Technical Details of CVE-2022-29161
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The issue stems from the use of the deprecated SHA1 with RSA algorithm for generating X509 certificates, which can lead to security weaknesses.
Affected Systems and Versions
XWiki Platform versions prior to 13.10.6, between 14.0.0 and 14.3.1, and between 14.4.0 and 14.4-rc-1 are affected by this vulnerability.
Exploitation Mechanism
Attackers can potentially exploit this vulnerability through network-based vectors due to the algorithm's flawed implementation.
Mitigation and Prevention
To address CVE-2022-29161 and enhance system security, follow the recommendations below.
Immediate Steps to Take
Upgrade XWiki installations to version 13.10.6, 14.3.1, or 14.4-rc-1 to mitigate the risk. If upgrading is not possible, apply the patch provided in commit 26728f3 to the xwiki-platform-crypto module.
Long-Term Security Practices
Regularly update XWiki Platform to the latest versions and stay informed about security advisories to prevent potential vulnerabilities.
Patching and Updates
Stay vigilant for security patches released by XWiki and promptly apply them to maintain a secure environment.