CVE-2024-23953

Use of Arrays.equals() in LlapSignerImpl in Apache Hive to compare message signatures allows attacker to forge a valid signature for an arbitrary message byte by byte. The attacker should be an authorized user of the product to perform this attack. Users are recommended to upgrade to version 4.0.0, which fixes this issue. The problem occurs when an application doesn’t use a constant-time algorithm for validating a signature. The method Arrays.equals() returns false right away when it sees that one of the input’s bytes are different. It means that the comparison time depends on the contents of the arrays. This little thing may allow an attacker to forge a valid signature for an arbitrary message byte by byte. So it might allow malicious users to submit splits/work with selected signatures to LLAP without running as a privileged user, potentially leading to DDoS attack. More details in the reference section.

• CWE-208

• https://blog.gypsyengineer.com/en/security/preventing-timing-attacks-with-codeql.htmlExploit, Third Party Advisory
• https://cqr.company/web-vulnerabilities/timing-attacks/Technical Description
• https://github.com/apache/hiveProduct
• https://github.com/apache/hive/commit/b418e3c9f479ba8e7d31e6470306111002ffa809Patch
• https://issues.apache.org/jira/browse/HIVE-28030Patch
• https://lists.apache.org/thread/0nloywj49nbtlc6l3c6363qvq7o1ztb7Mailing List, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2025/01/28/3Mailing List, Third Party Advisory

Published

Jan 28, 2025

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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