When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.
CVE-2021-25122 - High Severity Vulnerability
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/9.0.41/tomcat-embed-core-9.0.41.jar
Dependency Hierarchy: - spring-boot-starter-web-2.4.2.jar (Root Library) - spring-boot-starter-tomcat-2.4.2.jar - :x: **tomcat-embed-core-9.0.41.jar** (Vulnerable Library)
Found in HEAD commit: 338ae0024bb25a8bbd720eae5b5fbae3875c4bf3
Found in base branch: master
When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.
Publish Date: 2021-03-01
URL: CVE-2021-25122
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://lists.apache.org/thread.html/r7b95bc248603360501f18c8eb03bb6001ec0ee3296205b34b07105b7%40%3Cannounce.tomcat.apache.org%3E
Release Date: 2021-03-01
Fix Resolution (org.apache.tomcat.embed:tomcat-embed-core): 9.0.43
Direct dependency fix Resolution (org.springframework.boot:spring-boot-starter-web): 2.4.3
:rescue_worker_helmet: Automatic Remediation is available for this issue