Missing Authentication for Critical Function in Apache Hive - CVE-2021-34538
Published: May 24, 2023
Vulnerability identifier: #VU76481
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-34538
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Apache Hive
Apache Hive
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to CREATE() and DROP() function operations does not check for necessary authorization of involved entities in the query. A remote unauthenticated attacker can manipulate an existing UDF to drop and recreate UDFs pointing them to new jars that could be potentially malicious.
How to mitigate CVE-2021-34538
Install updates from vendor's website.