Ansible fetch module before versions 2.5.15, 2.6.14, 2.7.8 has a path traversal vulnerability which allows copying and overwriting files out

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• redhat ansible2.5.0 and later · before 2.5.15
• redhat ansible2.6.0 and later · before 2.6.14
• redhat ansible2.7.0 and later · before 2.7.8

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

• Red Hat Ansible

  • 2.5.15, 2.6.14, 2.7.8affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2014-4678The safe_eval function in Ansible before 1.6.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrar
  41Plan
• CVE-2014-4657The safe_eval function in Ansible before 1.5.4 does not properly restrict the code subset, which allows remote attackers to execute arbitrar
  40Plan
• CVE-2014-4967Multiple argument injection vulnerabilities in Ansible before 1.6.7 allow remote attackers to execute arbitrary code by leveraging access to
  40Plan
• CVE-2014-4966Ansible before 1.6.7 does not prevent inventory data with "{{" and "lookup" substrings, and does not prevent remote data with "{{" substring
  40Plan
• CVE-2017-7550A flaw was found in the way Ansible (2.3.x before 2.3.3, and 2.4.x before 2.4.1) passed certain parameters to the jenkins_plugin module.
  40Plan
• CVE-2016-8628Ansible before version 2.2.0 fails to properly sanitize fact variables sent from the Ansible controller.
  37Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1const file = path.join(ROOT, req.query.name);2res.sendFile(file);

1const file = path.resolve(ROOT, req.query.name);2if (!file.startsWith(ROOT + path.sep)) {3  return res.sendStatus(400);4}5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.