SB2023121516 - Multiple vulnerabilities in Jenkins OpenId Connect Authentication plugin

Description

This security bulletin contains information about 2 vulnerabilities.

1) Storing passwords in a recoverable format (CVE-ID: CVE-2023-50770)

CWE-ID: CWE-257 - Storing Passwords in a Recoverable Format

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

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to the affected plugin stores a password of a local user account used as an anti-lockout feature in a recoverable format. A local administrator can recover the plain text password of that account.

2) Open redirect (CVE-ID: CVE-2023-50771)

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

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

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://www.jenkins.io/security/advisory/2023-12-13/#SECURITY-3168
• http://www.openwall.com/lists/oss-security/2023/12/13/4
• https://www.jenkins.io/security/advisory/2023-12-13/#SECURITY-2979