BIT-tomcat-2021-30640

    Dashboard / Vulnerabilities / BIT-tomcat-2021-30640

    BIT-tomcat-2021-30640

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Auth weakness in JNDIRealm

    Details: 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 to 10.0.5; 9.0.0 to 9.0.45; 8.5.0 to 8.5.65.

    References: https://lists.apache.org/thread.html/r59f9ef03929d32120f91f4ea7e6e79edd5688d75d0a9b65fd26d1fe8%40%3Cannounce.tomcat.apache.org%3E, https://lists.debian.org/debian-lts-announce/2021/08/msg00009.html, https://security.gentoo.org/glsa/202208-34, https://security.netapp.com/advisory/ntap-20210827-0007/, https://www.debian.org/security/2021/dsa-4952, https://www.debian.org/security/2021/dsa-4986, https://www.oracle.com//security-alerts/cpujul2021.html, https://www.oracle.com/security-alerts/cpujan2022.html, https://www.oracle.com/security-alerts/cpuoct2021.html, https://nvd.nist.gov/vuln/detail/CVE-2021-30640

    Affected packages

    Package

    Name: tomcat

    Purl: pkg:bitnami/tomcat

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 7.0.0
    Fixed -7.0.109

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-tomcat-2021-30640 | CVE-DB