N/A

CVSS Score

-

CVSS Score

Basic Information

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CVE-2024-52279

CVE-2024-52279: Apache Zeppelin: Arbitrary file read by adding malicious JDBC connection string

Improper Input Validation vulnerability in Apache Zeppelin. The fix for JDBC URL validation in CVE-2024-31864 did not account for URL encoded input.

This issue affects Apache Zeppelin: from 0.11.1 before 0.12.0.

Users are recommended to upgrade to version 0.12.0, which fixes the issue.

(GitHub Advisory)

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CVE-2024-52279

CVE-2024-52279:

N/A

CVSS Score

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
org.apache.zeppelin:zeppelin-jdbc	maven	>= 0.11.1, < 0.12.0	0.12.0

Technical Details

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Root Cause Analysis

The vulnerability lies in the JDBCInterpreter of Apache Zeppelin, specifically in how it validates JDBC connection URLs. The root cause is improper input validation, where the validateConnectionUrl method failed to decode URL-encoded characters in the connection string before checking for blacklisted, sensitive parameters. An attacker could exploit this by crafting a malicious JDBC URL with sensitive options (like allowLoadLocalInfile) encoded. When Zeppelin's JDBC interpreter processes this URL, the getConnection method calls validateConnectionUrl. The vulnerable version of this method would inspect the raw, encoded URL and fail to find the blacklisted keywords, thus bypassing the security check. This would allow the interpreter to establish a connection with dangerous parameters, potentially leading to arbitrary file reads from the server's local filesystem. The patch addresses this by ensuring the URL is decoded before the validation checks are performed, so any encoded malicious parameters are revealed and blocked as intended.

Vulnerable functions

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WAF Rule

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Reasoning

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