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GHSA-468W-8X39-GJ5V

Vulnerability from github – Published: 2022-12-08 16:11 – Updated: 2022-12-12 22:26
VLAI
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.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/traefik/traefik/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-46153"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-08T16:11:12Z",
    "nvd_published_at": "2022-12-08T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "## Impact\n\nThere is a potential vulnerability in Traefik managing the TLS connections.\n\nA router configured with a not well-formatted [TLSOption](https://doc.traefik.io/traefik/v2.9/https/tls/#tls-options) is exposed with an empty TLSOption.\n\nFor instance, a route secured using an mTLS connection set with a wrong CA file is exposed without verifying the client certificates.\n\n## Patches\n\nhttps://github.com/traefik/traefik/releases/tag/v2.9.6\n\n## Workarounds\n\nCheck the logs to detect the following error messages and fix your TLS options:\n\n- Empty CA:\n\n```\n{\"level\":\"error\",\"msg\":\"invalid clientAuthType: RequireAndVerifyClientCert, CAFiles is required\",\"routerName\":\"Router0@file\"}\n```\n\n- Bad CA content (or bad path):\n\n```\n{\"level\":\"error\",\"msg\":\"invalid certificate(s) content\",\"routerName\":\"Router0@file\"}\n```\n\n- Unknown Client Auth Type:\n\n```\n{\"level\":\"error\",\"msg\":\"unknown client auth type \\\"FooClientAuthType\\\"\",\"routerName\":\"Router0@file\"}\n```\n\n- Invalid cipherSuites\n\n```\n{\"level\":\"error\",\"msg\":\"invalid CipherSuite: foobar\",\"routerName\":\"Router0@file\"}\n```\n\n- Invalid curvePreferences\n\n```\n{\"level\":\"error\",\"msg\":\"invalid CurveID in curvePreferences: foobar\",\"routerName\":\"Router0@file\"}\n``` \n\n## For more information\n\nIf you have any questions or comments about this advisory, please [open an issue](https://github.com/traefik/traefik/issues).",
  "id": "GHSA-468w-8x39-gj5v",
  "modified": "2022-12-12T22:26:28Z",
  "published": "2022-12-08T16:11:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/traefik/traefik/security/advisories/GHSA-468w-8x39-gj5v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46153"
    },
    {
      "type": "WEB",
      "url": "https://github.com/traefik/traefik/commit/7e3fe48b80083b41e9ff82a474a36484cabc701a"
    },
    {
      "type": "WEB",
      "url": "https://doc.traefik.io/traefik/v2.9/https/tls/#tls-options"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/traefik/traefik"
    },
    {
      "type": "WEB",
      "url": "https://github.com/traefik/traefik/releases/tag/v2.9.6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Traefik routes exposed with an empty TLSOption"
}



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