CVE-2016-9587

Advisory

Ansible versions 2.1.4 and 2.2.1 include a fix for CVE-2016-9587: Ansible before versions 2.1.4, 2.2.1 is vulnerable to an improper input validation in Ansible's handling of data sent from client systems. An attacker with control over a client system being managed by Ansible and the ability to send facts back to the Ansible server could use this flaw to execute arbitrary code on the Ansible server using the Ansible server privileges.
https://www.exploit-db.com/exploits/41013/

Affected package

Affected versions

Fixed versions

Vulnerability changelog

* Security fix for CVE-2016-9587 - An attacker with control over a client system being managed by Ansible and the ability to send facts back to the Ansible server could use this flaw to execute arbitrary code on the Ansible server as the user and group Ansible is running as.
* Fixed a bug with conditionals in loops, where undefined variables and other errors will defer raising the error until the conditional has been evaluated.
* Added a version check for jinja2-2.9, which does not fully work with Ansible currently.

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9587
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9587
• https://www.exploit-db.com/exploits/41013/
• https://security.gentoo.org/glsa/201701-77
• https://access.redhat.com/errata/RHSA-2017:1685
• https://access.redhat.com/errata/RHSA-2017:0515
• https://access.redhat.com/errata/RHSA-2017:0448
• http://www.securityfocus.com/bid/95352
• http://rhn.redhat.com/errata/RHSA-2017-0260.html
• http://rhn.redhat.com/errata/RHSA-2017-0195.html