Input validation error in Puppet

1) Input validation error

EUVDB-ID: #VU42980

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:L/PR:/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-1640

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote #AU# to execute arbitrary code.

The (1) template and (2) inline_template functions in the master server in Puppet before 2.6.18, 2.7.x before 2.7.21, and 3.1.x before 3.1.1, and Puppet Enterprise before 1.2.7 and 2.7.x before 2.7.2 allows remote authenticated users to execute arbitrary code via a crafted catalog request. Per http://www.ubuntu.com/usn/usn-1759-1/ "A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.10 Ubuntu 12.04 LTS Ubuntu 11.10"

Mitigation

Install update from vendor's website.

Vulnerable software versions

Puppet Agent: 2.7.0 - 2.7.20

CPE2.3

External links

http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00004.html
http://lists.opensuse.org/opensuse-updates/2013-04/msg00056.html
http://rhn.redhat.com/errata/RHSA-2013-0710.html
http://secunia.com/advisories/52596
http://ubuntu.com/usn/usn-1759-1
http://www.debian.org/security/2013/dsa-2643
http://puppetlabs.com/security/cve/cve-2013-1640/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.