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.
CVE-2021-30640 - Medium Severity Vulnerability
Vulnerable Library - tomcat-embed-core-9.0.37.jar
Core Tomcat implementation
Library home page: https://tomcat.apache.org/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.37/tomcat-embed-core-9.0.37.jar
Dependency Hierarchy: - spring-boot-starter-web-2.3.3.RELEASE.jar (Root Library) - spring-boot-starter-tomcat-2.3.3.RELEASE.jar - :x: **tomcat-embed-core-9.0.37.jar** (Vulnerable Library)
Found in base branch: master
Vulnerability 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-M1 to 10.0.5; 9.0.0.M1 to 9.0.45; 8.5.0 to 8.5.65.
Publish Date: 2021-07-12
URL: CVE-2021-30640
CVSS 3 Score Details (6.5)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://lists.apache.org/thread/3qcmnprbtft3phn3vyk06hpycm7p4sgx
Release Date: 2021-07-12
Fix Resolution (org.apache.tomcat.embed:tomcat-embed-core): 9.0.46
Direct dependency fix Resolution (org.springframework.boot:spring-boot-starter-web): 2.3.11.RELEASE
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