CloudBees Security Advisory 2013-05-02

This advisory announces multiple security vulnerabilities that were found in Jenkins core.

SECURITY-63 / CVE-2013-2034

This creates a cross-site request forgery (CSRF) vulnerability on Jenkins master, where an anonymous attacker can trick an administrator to execute arbitrary code on Jenkins master by having him open a specifically crafted attack URL.

There's also a related vulnerability where the permission check on this ability is done imprecisely, which may affect those who are running Jenkins instances with a custom authorization strategy plugin.

SECURITY-67 / CVE-2013-2033

This creates a cross-site scripting (XSS) vulnerability, where an attacker with a valid user account on Jenkins can execute JavaScript in the browser of other users, if those users are using certain browsers.

SECURITY-69 / CVE-2013-2034

This is another CSRF vulnerability that allows an attacker to cause a deployment of binaries to Maven repositories. This vulnerability has the same CVE ID as SEUCRITY-63.

SECURITY-71 / CVE-2013-1808

This creates a cross-site scripting (XSS) vulnerability.

SECURITY-63 is rated critical , since it enables arbitrary code execution.

SECURITY-71 and SECURITY-69 are rated as high , as it allows malicious users to gain unauthorized access to the information and impersonate the administrator of the system. In addition, this allows Jenkins inside a firewall to be attacked from outside. On the other hands, this attack can be only mounted passively, and the attacker needs to know the URL of your Jenkins installations.

SECURITY-67 is rated medium , as it requires an attacker to be a valid user of Jenkins with a write access.

• Main line users should upgrade to Jenkins 1.514

• LTS users should upgrade to 1.509.1

• Users of Jenkins Enterprise by CloudBees 1.466.x should upgrade to 1.466.14.1

• Users of Jenkins Enterprise by CloudBees 1.480.x should upgrade to 1.480.4.1

• Fix has already been deployed to DEV@cloud

All the prior versions are affected by these vulnerabilities.