GitHub Advisoryadvisory · Maven

GHSA-gw55-jm4h-x339 Improper Validation of Certificate with Host Mismatch in Java-WebSocket

HIGH Published 2020-05-08 Modified 2021-10-08 Official page ↗
Aliases
CVE-2020-11050
Ecosystem
Maven
Packages
org.java-websocket:Java-WebSocket
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-295, CWE-297
Reviewed
2020-05-08

Affected packages

• Maven org.java-websocket:Java-WebSocket: < 1.5.0 → fixed in 1.5.0

Description

The Java-WebSocket Client does not perform hostname verification. • This means that SSL certificates of other hosts are accepted as long as they are trusted. To exploit this vulnerability an attacker has to perform a man-in-the-middle (MITM) attack between a Java application using the Java-WebSocket Client and an WebSocket server it's connecting to. • TLS normally protects users and systems against MITM attacks, it cannot if certificates from other trusted hosts are accepted by the client. For more information see: CWE-297: Improper Validation of Certificate with Host Mismatch - https://cwe.mitre.org/data/definitions/297.html Important note The OWASP Dependency-Check (https://jeremylong.github.io/DependencyCheck/index.html) may report that a dependency of your project is affected by this security vulnerability, but you don't use this lib. This is caused by the fuzzy search in the OWASP implementation. Check out this issue (https://github.com/TooTallNate/Java-WebSocket/issues/1019#issuecomment-628507934) for more information and a way to suppress the warning.

Related

Alias · CVE (1)

  • CVE-2020-11050 In Java-WebSocket less than or equal to 1.4.1, there is an Improper Validation of Certificate with Host Mismatch where WebSocketClient does… vulnerability

Weakness · CWE (2)

  • CWE-295 Improper Certificate Validation weakness
  • CWE-297 Improper Validation of Certificate with Host Mismatch weakness

References