Ansible playbook symlink

ansible-cve20134260-symlink (86898) The risk level is classified as MediumMedium Risk

Description:

Ansible could allow a local attacker to launch a symlink attack. Temporary files are created insecurely within /var/tmp directory on failed run of playbook. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to various files on the system, which could allow the attacker to overwrite arbitrary files on the system with elevated privileges.

*CVSS:

Base Score: 3.3
  Access Vector: Local
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 2.4
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

File Manipulation

Remedy:

Upgrade to the latest version of Ansible (1.2.3 or later), available from the Ansible Web site. See References.

References:

  • Ansible GIT Repository Web Site: Ansible GIT Repository.
  • Ansible Project Web Site: Ansible Project.
  • Ansible Web Site: Ansible.
  • Red Hat Bugzilla Bug 998227: CVE-2013-4260 ansible: predictible filename used for failed result in world writable directory.
  • BID-62130: ansible CVE-2013-4260 Insecure Temporary File Creation Vulnerability
  • CVE-2013-4260: lib/ansible/playbook/__init__.py in Ansible 1.2.x before 1.2.3, when playbook does not run due to an error, allows local users to overwrite arbitrary files via a symlink attack on a retry file with a predictable name in /var/tmp/ansible/.
  • SA54686: Ansible Two Insecure Temporary File Creation Security Issues

Platforms Affected:

  • Ansible Ansible 1.2
  • Ansible Ansible 1.2.1
  • Ansible Ansible 1.2.2

Reported:

Aug 30, 2013

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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