GHSA-468w-8x39-gj5v

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Source
https://github.com/advisories/GHSA-468w-8x39-gj5v
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-468w-8x39-gj5v/GHSA-468w-8x39-gj5v.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-468w-8x39-gj5v
Aliases
Related
Published
2022-12-08T16:11:12Z
Modified
2023-11-08T04:10:55.101782Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Traefik routes exposed with an empty TLSOption
Details

Impact

There is a potential vulnerability in Traefik managing the TLS connections.

A router configured with a not well-formatted TLSOption is exposed with an empty TLSOption.

For instance, a route secured using an mTLS connection set with a wrong CA file is exposed without verifying the client certificates.

Patches

https://github.com/traefik/traefik/releases/tag/v2.9.6

Workarounds

Check the logs to detect the following error messages and fix your TLS options:

  • Empty CA:

    {"level":"error","msg":"invalid clientAuthType: RequireAndVerifyClientCert, CAFiles is required","routerName":"Router0@file"}
    
  • Bad CA content (or bad path):

    {"level":"error","msg":"invalid certificate(s) content","routerName":"Router0@file"}
    
  • Unknown Client Auth Type:

    {"level":"error","msg":"unknown client auth type \"FooClientAuthType\"","routerName":"Router0@file"}
    
  • Invalid cipherSuites

    {"level":"error","msg":"invalid CipherSuite: foobar","routerName":"Router0@file"}
    
  • Invalid curvePreferences

    {"level":"error","msg":"invalid CurveID in curvePreferences: foobar","routerName":"Router0@file"}
    

For more information

If you have any questions or comments about this advisory, please open an issue.

References

Affected packages

Go / github.com/traefik/traefik/v2

Package

Name
github.com/traefik/traefik/v2
View open source insights on deps.dev
Purl
pkg:golang/github.com/traefik/traefik/v2

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.9.6