ghsa-xhqq-x44f-9fgg
Vulnerability from github
Published
2022-02-11 23:58
Modified
2021-05-21 21:11
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Authentication Bypass in github.com/russellhaering/gosaml2
Details

Impact

Given a valid SAML Response, it may be possible for an attacker to mutate the XML document in such a way that gosaml2 will trust a different portion of the document than was signed.

Depending on the implementation of the Service Provider this enables a variety of attacks, including users accessing accounts other than the one to which they authenticated in the Identity Provider, or full authentication bypass.

Patches

Service Providers utilizing gosaml2 should upgrade to v0.6.0 or greater.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/russellhaering/gosaml2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-29509"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-115"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-21T21:11:37Z",
    "nvd_published_at": "2020-12-14T20:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\nGiven a valid SAML Response, it may be possible for an attacker to mutate the XML document in such a way that gosaml2 will trust a different portion of the document than was signed.\n\nDepending on the implementation of the Service Provider this enables a variety of attacks, including users accessing accounts other than the one to which they authenticated in the Identity Provider, or full authentication bypass.\n\n### Patches\nService Providers utilizing gosaml2 should upgrade to v0.6.0 or greater.",
  "id": "GHSA-xhqq-x44f-9fgg",
  "modified": "2021-05-21T21:11:37Z",
  "published": "2022-02-11T23:58:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/russellhaering/gosaml2/security/advisories/GHSA-xhqq-x44f-9fgg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-29509"
    },
    {
      "type": "WEB",
      "url": "https://github.com/russellhaering/gosaml2/commit/42606dafba60c58c458f14f75c4c230459672ab9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2021-0060"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210129-0006"
    }
  ],
  "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": "Authentication Bypass in github.com/russellhaering/gosaml2"
}


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