high
7.5
CWE
116 287
Advisory Published
CVE Published
Updated

CVE-2021-30640: Auth weakness in JNDIRealm

First published: Mon Jul 12 2021(Updated: )

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.

Credit: security@apache.org security@apache.org

Affected SoftwareAffected VersionHow to fix
redhat/jws5-tomcat<0:9.0.50-3.redhat_00004.1.el7
0:9.0.50-3.redhat_00004.1.el7
redhat/jws5-tomcat-native<0:1.2.30-3.redhat_3.el7
0:1.2.30-3.redhat_3.el7
redhat/jws5-tomcat-vault<0:1.1.8-4.Final_redhat_00004.1.el7
0:1.1.8-4.Final_redhat_00004.1.el7
redhat/jws5-tomcat<0:9.0.50-3.redhat_00004.1.el8
0:9.0.50-3.redhat_00004.1.el8
redhat/jws5-tomcat-native<0:1.2.30-3.redhat_3.el8
0:1.2.30-3.redhat_3.el8
redhat/jws5-tomcat-vault<0:1.1.8-4.Final_redhat_00004.1.el8
0:1.1.8-4.Final_redhat_00004.1.el8
redhat/tomcat<10.0.6
10.0.6
redhat/tomcat<9.0.46
9.0.46
redhat/tomcat<8.5.66
8.5.66
redhat/tomcat<7.0.109
7.0.109
Apache Tomcat>=7.0.0<7.0.109
Apache Tomcat>=8.5.0<8.5.66
Apache Tomcat>=9.0.0<9.0.46
Apache Tomcat>=10.0.0<10.0.6
Oracle Communications Cloud Native Core Policy=1.14.0
Oracle Communications Diameter Signaling Router>=8.0.0<=8.5.0
Oracle Communications Pricing Design Center=12.0.0.3.0
Oracle Hospitality Cruise Shipboard Property Management System=20.1.0
Oracle Tekelec Platform Distribution>=7.4.0<=7.7.1
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Debian Debian Linux=11.0
IBM DRM<=2.0.6
debian/tomcat9
9.0.43-2~deb11u10
9.0.70-2
9.0.95-1

Remedy

https://www.oracle.com/security-alerts/cpujan2022.html

Remedy

https://www.oracle.com/security-alerts/cpuoct2021.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2021-30640?

    CVE-2021-30640 is a vulnerability in the JNDI Realm of Apache Tomcat that allows an attacker to bypass security restrictions.

  • How does CVE-2021-30640 impact Apache Tomcat?

    CVE-2021-30640 allows a remote attacker to bypass security restrictions in Apache Tomcat.

  • What is the severity of CVE-2021-30640?

    CVE-2021-30640 has a severity rating of 7.5 (high).

  • Which versions of Apache Tomcat are affected by CVE-2021-30640?

    Affected versions include Apache Tomcat 7.0.0 to 7.0.109, 8.5.0 to 8.5.66, 9.0.0 to 9.0.46, and 10.0.0 to 10.0.6.

  • How can I fix CVE-2021-30640 in Apache Tomcat?

    To fix CVE-2021-30640, upgrade to Apache Tomcat versions 7.0.110, 8.5.67, 9.0.47, or 10.0.7.

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