ghsa-4fgq-gq9g-3rw7
Vulnerability from github
Published
2019-09-23 18:32
Modified
2021-04-01 20:57
Summary
Improper Verification of Cryptographic Signature in keycloak
Details

It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to sensitive information.

Show details on source website


{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 6.0.1"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-10201"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-09-19T15:26:01Z",
    "nvd_published_at": "2019-08-14T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "It was found that Keycloak\u0027s SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the \u003cSignature\u003e sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to sensitive information.",
  "id": "GHSA-4fgq-gq9g-3rw7",
  "modified": "2021-04-01T20:57:58Z",
  "published": "2019-09-23T18:32:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10201"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Verification of Cryptographic Signature in keycloak"
}


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