9.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-34340

CVE-2023-34340: Apache Accumulo Improper Authentication vulnerability

Improper Authentication vulnerability in Apache Software Foundation Apache Accumulo. This issue affects Apache Accumulo: 2.1.0.

Accumulo 2.1.0 contains a defect in the user authentication process that may succeed when invalid credentials are provided. Users are advised to upgrade to 2.1.1.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2023-34340

CVE-2023-34340:

9.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
org.apache.accumulo:accumulo-shell	maven	= 2.1.0	2.1.1

Technical Details

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Miggo AI

Root Cause Analysis

The vulnerability stemmed from missing explicit authentication checks after client creation. The critical fix in commit 0f2389735fd32e0bbc93ecde5d8c814b275b21b5 added authenticateUser() calls in both config() and updateUser() methods. The original config() method created an AccumuloClient without validating credentials via securityOperations().authenticateUser, allowing invalid credentials to be accepted. The updateUser() method's direct call to securityOperations().authenticateUser without proper error handling in the authentication flow also contributed to the vulnerability. The high confidence for config() comes from its role in initial client setup, while updateUser() gets medium confidence due to being a secondary attack vector.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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