CVE-2021-30640 - CVE House
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Status published Medium CVE-2021-30640

Auth weakness in JNDIRealm

Vulnerability Description

A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Apache Software Foundation

View all reports →

Affected Software

Apache Tomcat
Vulnerable Versions:
Apache Tomcat 10 10.0.0-M1 to 10.0.5, Apache Tomcat 9 9.0.0.M1 to 9.0.45, Apache Tomcat 8.5 8.5.0 to 8.5.65, Apache Tomcat 7 7.0.0 to 7.0.108

Timeline

Official Publish: July 12th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.