SB2021051216 - Multiple vulnerabilities in Jenkins S3 publisher plugin

Description

This security bulletin contains information about 2 vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2021-21650)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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

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

The vulnerability exists due to the affected plugin does not perform Run/Artifacts permission checks in various HTTP endpoints and API models. A remote authenticated attacker can gain unauthorized access to sensitive information on the system.

2) Information disclosure (CVE-ID: CVE-2021-21651)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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

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

The vulnerability exists due to the affected plugin does not perform a permission check in an HTTP endpoint. A remote authenticated attacker can gain unauthorized access to sensitive information on the system.

Remediation

Install update from vendor's website.

References

• https://www.jenkins.io/security/advisory/2021-05-11/#SECURITY-2200
• https://www.jenkins.io/security/advisory/2021-05-11/#SECURITY-2201