Description
Jenkins before 2.3 and LTS before 1.651.2 allows remote authenticated users to trigger updating of update site metadata by leveraging a missing permissions check. NOTE: this issue can be combined with DNS cache poisoning to cause a denial of service (service disruption).
Remediation
References
http://rhn.redhat.com/errata/RHSA-2016-1773.html
https://access.redhat.com/errata/RHSA-2016:1206
https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-05-11
https://www.cloudbees.com/jenkins-security-advisory-2016-05-11
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