Arbitrary file read via encoded path traversal
Published Dec 18, 2023 · Updated Aug 2, 2024
Path traversal in MLflow Project's MLflow artifact handling before 2.9.2 allows remote attackers to read arbitrary server files via HTTP requests. The validate_path_is_safe function checks the encoded request path before URL decoding, so percent-encoded traversal segments bypass restricted-path validation. No authentication or user interaction is required when artifact serving is network-reachable; disclosure is limited to files readable by the server process.
Summary
What happened
Path traversal in MLflow Project's MLflow artifact handling before 2.9.2 allows remote attackers to read arbitrary server files via HTTP requests. The validate_path_is_safe function checks the encoded request path before URL decoding, so percent-encoded traversal segments bypass restricted-path validation. No authentication or user interaction is required when artifact serving is network-reachable; disclosure is limited to files readable by the server process.
The record
- CVE
- CVE-2023-6909
- Published
- Dec 18, 2023
- Updated
- Aug 2, 2024
- Vendor
- MLflow Project
- Product
- MLflow
- Classifications
- CWE-29, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 18, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <2.9.2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Huntr CVE-2023-6909 exploit reportproof of concept · unverified
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Technologies
Your stack
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Your stack
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