Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWd3NTUtam00aC14MzM5

Improper Validation of Certificate with Host Mismatch in Java-WebSocket

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.

Permalink: https://github.com/advisories/GHSA-gw55-jm4h-x339
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWd3NTUtam00aC14MzM5
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 4 years ago
Updated: about 2 years ago

CVSS Score: 9.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Percentage: 0.00145
EPSS Percentile: 0.5084

Identifiers: GHSA-gw55-jm4h-x339, CVE-2020-11050
References:

• https://github.com/TooTallNate/Java-WebSocket/security/advisories/GHSA-gw55-jm4h-x339
• https://nvd.nist.gov/vuln/detail/CVE-2020-11050
• https://github.com/advisories/GHSA-gw55-jm4h-x339

Repository: https://github.com/TooTallNate/Java-WebSocket
Blast Radius: 31.1

Affected Packages