Path traversal in GitHub Enterprise Server leading to arbitrary file reading when building a GitHub Pages site

Affected versions

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

• github enterprise server3.7.0 and later · before 3.7.19
• github enterprise server3.8.0 and later · before 3.8.12
• github enterprise server3.9.0 and later · before 3.9.7
• github enterprise server3.10.0 and later · before 3.10.4

Versions reported by the vendor

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

• GitHub Enterprise Server

  • 3.7.0 and later · before 3.7.19affected · semver
  • 3.8.0 and later · before 3.8.12affected · semver
  • 3.9.0 and later · before 3.9.7affected · semver
  • 3.10.0 and later · before 3.8.4affected · semver
  • 3.11.0 and later · before 3.11.1affected · semver

Other highest-scoring records for the same primary product.

• CVE-2024-0200Unsafe Reflection in Github Enterprise Server leading to Command Injection
  61This week
• CVE-2024-0507Privilege Escalation by Code Injection in the Management Console in GitHub Enterprise Server
  55Plan
• CVE-2024-9487An Improper Verification of Cryptographic Signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed
  46Plan
• CVE-2024-4985An authentication bypass vulnerability was present in the GitHub Enterprise Server (GHES) when utilizing SAML single sign-on authentication
  41Plan
• CVE-2022-23739Incorrect authorization check in GitHub Enterprise Server leading to escalation of privileges in GraphQL API requests from GitHub Apps using scoped user-to-serv
  39Monitor
• CVE-2022-46255Improper Limitation of a Pathname to a Restricted Directory in GitHub Enterprise Server leading to RCE
  39Monitor

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.