7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-6977

CVE-2023-6977: MLflow Local File Disclosure Vulnerability

This vulnerability enables malicious users to read sensitive files on the server.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2023-6977

CVE-2023-6977:

7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
mlflow	pip	< 2.9.2	2.9.2

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from improper path validation in the is_local_uri function. The pre-patch logic: 1. Considered URIs with empty schemes ('') as local 2. Only checked hostnames after scheme validation 3. Allowed 'file://' scheme without proper restrictions. This enabled attackers to bypass local path checks using URI formats like '//proc/self/root' which would be considered local due to empty scheme handling. The patch fixed this by: 1. Immediately returning True for empty schemes before hostname checks 2. Tightening scheme validation logic 3. Adding explicit tests for /proc/self/root paths. The function's validation logic was the root cause of path traversal vulnerability.

Vulnerable functions

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Vulnerability Intelligence
Miggo AI

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WAF Protection Rules

WAF Rule

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Reasoning

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