Information Exposure Through Timing Discrepancy in GitHub - CVE-2022-36885

Vulnerability identifier: #VU65851

CSH Severity: Low

CVSS v4: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-36885

CWE-ID: CWE-208

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the affected plugin does not use a constant-time comparison when checking whether the provided and computed webhook signatures are equal. A remote user can use statistical methods to obtain a valid webhook signature.

GitHub
Red Hat OpenShift Container Platform
cri-o (Red Hat package)
jenkins (Red Hat package)
jenkins-2-plugins (Red Hat package)

Install updates from vendor's website.

GitHub - update to 1.34.5
Red Hat OpenShift Container Platform - addressed in versions 4.8.56, 4.9.56, 4.10.51
cri-o (Red Hat package) - addressed in versions 1.23.5-5.rhaos4.10.gitd9dec98.el7, 1.23.5-5.rhaos4.10.gitd9dec98.el8
jenkins (Red Hat package) - addressed in versions 2.361.1.1672840472-1.el8, 2.361.1.1675668150-1.el8
jenkins-2-plugins (Red Hat package) - addressed in versions 4.8.1672842762-1.el8, 4.9.1675668922-1.el8, 4.10.1675144701-1.el8

• https://www.jenkins.io/security/advisory/2022-07-27/#SECURITY-1849
• http://www.openwall.com/lists/oss-security/2022/07/27/1

• Information disclosure in Jenkins GitHub plugin
• Multiple vulnerabilities in OpenShift Container Platform 4.8
• Multiple vulnerabilities in OpenShift Container Platform 4.10
• Multiple vulnerabilities in OpenShift Container Platform 4.9
• Multiple vulnerabilities in OpenShift Container Platform 4.9