This advisory announces:
multiple security vulnerabilities that were found in Jenkins core.
a security vulnerability found in the matrix-project plugin
This vulnerability allows users with the job configuration privilege to escalate his privileges, resulting in arbitrary code execution to the Jenkins controller.
This vulnerability allows users with the job configuration privilege or users with commit access to the build script to access arbitrary files/directories on the Jenkins controller, resulting in the exposure of sensitive information, such as encryption keys.
This vulnerability allows authenticated users to disrupt the operation of Jenkins by feeding malicious update center data into Jenkins, affecting plugin installation and tool installation.
This vulnerability allows users with the read access to Jenkins to retrieve arbitrary XML document on the server, resulting in the exposure of sensitive information inside/outside Jenkins.
For users using "Jenkins user database" setting, Jenkins doesn’t refuse reserved names, thus allowing privilege escalation.
This vulnerability allows attackers to create malicious XML documents and feed that into Jenkins, which causes Jenkins to retrieve arbitrary XML document on the server, resulting in the exposure of sensitive information inside/outside Jenkins.
SECURITY-125 is rated critical. This attack can be only mounted by users with some trust, but it results in arbitrary code execution on the Jenkins controller.
SECURITY-162 is rated critical. This attack can be only mounted by users with some trust, but it results in the exposure of sensitive information.
SECURITY-163 is rated medium, as it results in the loss of functionality.
SECURITY-165 is rated critical. This attack is easy to mount, and it results in the exposure of sensitive information.
SECURITY-166 is rated critical. For users who use the affected feature, this attack results in arbitrary code execution on the Jenkins controller.
SECURITY-167 is rated critical. This attack is easy to mount, and it results in the exposure of sensitive information.
All the Jenkins releases <= 1.600
All the LTS releases <= 1.580.3
Matrix project plugin <= 1.4
The Jenkins project would like to thank the following people for finding the vulnerabilities:
Daniel Beck for finding SECURITY-125, SECURITY-162, SECURITY-163
Fabian Beterke for finding SECURITY-165 and SECURITY-167
Steven Christou for finding SECURITY-166