SB2020081306 - Multiple vulnerabilities in Jenkins Pipeline Maven Integration plugin

Description

This security bulletin contains information about 3 vulnerabilities.

1) Cross-site request forgery (CVE-ID: CVE-2020-2235)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

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

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-2234)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

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

The vulnerability allows a remote attacker to gain access to sensitive information on the target system.

The vulnerability exists due to the affected plugin does not perform a permission check in a method implementing form validation. A remote user can capture credentials stored in Jenkins.

3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-2233)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

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 sensitive information on the target system.

The vulnerability exists due to the affected plugin does not perform a permission check in an HTTP endpoint. A remote user with Overall/Read access to Jenkins can enumerate credentials IDs of credentials stored in Jenkins.

Remediation

Install update from vendor's website.

References

• http://www.openwall.com/lists/oss-security/2020/08/12/4
• https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1794%20(2)
• https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1794%20(1)