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AUSCERT External Security Bulletin Redistribution
Jenkins Security Advisory 2016-11-16
17 November 2016
AusCERT Security Bulletin Summary
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
CVE Names: CVE-2016-9299
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Jenkins Security Advisory 2016-11-16
Added by Daniel Beck, last edited by Daniel Beck on Nov 16, 2016
This advisory announces the fix for a previously disclosed zero-day
vulnerability in Jenkins.
Remote code execution vulnerability in remoting module
SECURITY-360 / CVE-2016-9299
An unauthenticated remote code execution vulnerability allowed attackers to
transfer a serialized Java object to the Jenkins CLI, making Jenkins connect
to an attacker-controlled LDAP server, which in turn can send a serialized
payload leading to code execution, bypassing existing protection mechanisms.
SECURITY-360 is considered critical as it allows unprivileged attackers to
execute arbitrary code.
All Jenkins main line releases up to and including 2.31
All Jenkins LTS releases up to and including 2.19.2
Jenkins main line users should update to 2.32
Jenkins LTS users should update to 2.19.3
These versions include fixes to all the vulnerabilities described above. All
prior versions are affected by these vulnerabilities.
As part of this fix, a number of other so-called "gadgets" were reviewed and
are now also being prohibited. We tracked this activity as SECURITY-317.
November 16 blog post announcing the fixes
November 11 blog post with workaround after public disclosure of the
LTS 2.19.3 upgrade guide for Jenkins administrators
Corresponding security advisory for CloudBees Jenkins Enterprise and
CloudBees Jenkins Operations Center
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