#VU43768 Path traversal in Puppet Agent - CVE-2012-3865

Vulnerability identifier: #VU43768

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2012-3865

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Puppet Agent
Server applications / Conferencing, Collaboration and VoIP solutions

Vendor: Puppet Labs

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in lib/puppet/reports/store.rb in Puppet before 2.6.17 and 2.7.x before 2.7.18, and Puppet Enterprise before 2.5.2, when Delete is enabled in auth.conf,. A remote authenticated attacker can send a specially crafted HTTP request and remote authenticated users to delete arbitrary files on the puppet master server via a . (dot dot) in a node name.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Puppet Agent:

---

External links
https://lists.opensuse.org/opensuse-security-announce/2012-08/msg00006.html
https://lists.opensuse.org/opensuse-updates/2012-07/msg00036.html
https://puppetlabs.com/security/cve/cve-2012-3865/
https://secunia.com/advisories/50014
https://www.debian.org/security/2012/dsa-2511
https://www.ubuntu.com/usn/USN-1506-1
https://bugzilla.redhat.com/show_bug.cgi?id=839131
https://github.com/puppetlabs/puppet/commit/554eefc55f57ed2b76e5ee04d8f194d36f6ee67f
https://github.com/puppetlabs/puppet/commit/d80478208d79a3e6d6cb1fbc525e24817fe8c4c6

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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