Arbitrary file write via Windows URL traversal
Published Dec 13, 2023 · Updated Oct 8, 2024
Path traversal in MLflow before 2.9.2 allows remote attackers to write files outside the selected directory via a crafted HTTP URL. HTTPDatasetSource.load derives the filename with posixpath.basename, leaving Windows backslash traversal segments intact before opening the joined destination path. Exploitation requires a Windows process to load an attacker-controlled dataset URL; merely exposing an MLflow server is insufficient.
Summary
What happened
Path traversal in MLflow before 2.9.2 allows remote attackers to write files outside the selected directory via a crafted HTTP URL. HTTPDatasetSource.load derives the filename with posixpath.basename, leaving Windows backslash traversal segments intact before opening the joined destination path. Exploitation requires a Windows process to load an attacker-controlled dataset URL; merely exposing an MLflow server is insufficient.
The record
- CVE
- CVE-2023-6753
- Published
- Dec 13, 2023
- Updated
- Oct 8, 2024
- Vendor
- MLflow Project
- Product
- MLflow
- Classifications
- CWE-22, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 13, 2023CVE publishedPublication date reported by the CVE source.
- Oct 8, 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 Windows path-traversal proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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