SB2020101208 - Multiple vulnerabilities in Jenkins Audit Trail plugin

Description

This security bulletin contains information about 2 vulnerabilities.

1) Improper Interaction Between Multiple Correctly-Behaving Entities (CVE-ID: CVE-2020-2287)

CWE-ID: CWE-435 - Improper Interaction Between Multiple Correctly-Behaving Entities

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a emote attacker to compromise the system.

The vulnerability exists due to a discrepancy between the behavior of the plugin and the Stapler web framework in parsing URL paths. A remote attacker can craft URLs that would bypass request logging. 

2) Incorrect Regular Expression (CVE-ID: CVE-2020-2288)

CWE-ID: CWE-185 - Incorrect Regular Expression

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the system.

The vulnerability exists due to the default regular expression pattern can be bypassed in many cases by adding a suffix to the URL that would be ignored during request handling.

Remediation

Install update from vendor's website.

References

• http://www.openwall.com/lists/oss-security/2020/10/08/5
• https://www.jenkins.io/security/advisory/2020-10-08/#SECURITY-1815
• https://www.jenkins.io/security/advisory/2020-10-08/#SECURITY-1846