CVE-2020-13935 (High) detected in tomcat-embed-websocket-9.0.35.jar

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CVE-2020-13935 - High Severity Vulnerability

Vulnerable Library - tomcat-embed-websocket-9.0.35.jar

Core Tomcat implementation

Library home page: https://tomcat.apache.org/

Path to dependency file: /build.gradle

Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/org.apache.tomcat.embed/tomcat-embed-websocket/9.0.35/62ab2d7d7d029ea728ea8f8d3151ba93882b52ca/tomcat-embed-websocket-9.0.35.jar

Dependency Hierarchy:

• spring-boot-starter-web-2.3.0.RELEASE.jar (Root Library)
  • spring-boot-starter-tomcat-2.3.0.RELEASE.jar
    • ❌ tomcat-embed-websocket-9.0.35.jar (Vulnerable Library)

Found in HEAD commit: 3321fac8289b7c046634aad05920e45cf1064b09

Found in base branch: master

Vulnerability Details

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

Publish Date: 2020-07-14

URL: CVE-2020-13935

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f8a701f93b85752651%40%3Cannounce.tomcat.apache.org%3E

Release Date: 2020-07-14

Fix Resolution (org.apache.tomcat.embed:tomcat-embed-websocket): 9.0.37

Direct dependency fix Resolution (org.springframework.boot:spring-boot-starter-web): 2.3.2.RELEASE

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