GHSA-GR7W-X2JP-3XGW

Vulnerability from github – Published: 2022-10-06 22:58 – Updated: 2022-10-06 22:58
VLAI?
Summary
Caddy vulnerable to Authentication Bypass due to mishandling of TLS client authentication
Details

Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.

Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/caddyserver/caddy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.10.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-21246"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-10-06T22:58:56Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.",
  "id": "GHSA-gr7w-x2jp-3xgw",
  "modified": "2022-10-06T22:58:56Z",
  "published": "2022-10-06T22:58:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-21246"
    },
    {
      "type": "WEB",
      "url": "https://github.com/caddyserver/caddy/pull/2099"
    },
    {
      "type": "WEB",
      "url": "https://github.com/caddyserver/caddy/commit/4d9ee000c8d2cbcdd8284007c1e0f2da7bc3c7c3"
    },
    {
      "type": "WEB",
      "url": "https://bugs.gentoo.org/715214"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/caddyserver/caddy"
    },
    {
      "type": "WEB",
      "url": "https://github.com/caddyserver/caddy/releases/tag/v0.10.13"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2020-0043"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Caddy vulnerable to Authentication Bypass due to mishandling of TLS client authentication"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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