gsd-2019-10201
Vulnerability from gsd
Modified
2023-12-13 01:23
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 <Signature> 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.
Aliases
Aliases
CVE-2019-10201


To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-10201",
    "description": "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": "GSD-2019-10201",
    "references": [
      "https://access.redhat.com/errata/RHSA-2020:2366",
      "https://access.redhat.com/errata/RHSA-2020:2067",
      "https://access.redhat.com/errata/RHSA-2019:2483"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-10201"
      ],
      "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": "GSD-2019-10201",
      "modified": "2023-12-13T01:23:59.109566Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2019-10201",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "keycloak",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "up to keycloak 6.0.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Red Hat "
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "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."
          }
        ]
      },
      "impact": {
        "cvss": [
          [
            {
              "vectorString": "8.1/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
              "version": "3.0"
            }
          ]
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-592"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,6.0.1]",
          "affected_versions": "All versions up to 6.0.1",
          "cvss_v2": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-347",
            "CWE-937"
          ],
          "date": "2021-04-01",
          "description": "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.",
          "fixed_versions": [
            "7.0.0"
          ],
          "identifier": "CVE-2019-10201",
          "identifiers": [
            "GHSA-4fgq-gq9g-3rw7",
            "CVE-2019-10201"
          ],
          "not_impacted": "All versions after 6.0.1",
          "package_slug": "maven/org.keycloak/keycloak-core",
          "pubdate": "2019-09-23",
          "solution": "Upgrade to version 7.0.0 or above.",
          "title": "Improper Verification of Cryptographic Signature",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2019-10201",
            "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201",
            "https://github.com/advisories/GHSA-4fgq-gq9g-3rw7"
          ],
          "uuid": "ff073e4e-b826-4ca3-ad27-2472d5a2e09b"
        },
        {
          "affected_range": "\u003c=6.0.1",
          "affected_versions": "All versions up to 6.0.1",
          "cvss_v2": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-347",
            "CWE-937"
          ],
          "date": "2019-10-09",
          "description": "It was found that Keycloak\u0027s SAML broker 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.",
          "fixed_versions": [
            "7.0.0"
          ],
          "identifier": "CVE-2019-10201",
          "identifiers": [
            "CVE-2019-10201"
          ],
          "not_impacted": "All versions after 6.0.1",
          "package_slug": "npm/keycloak-connect",
          "pubdate": "2019-08-14",
          "solution": "Upgrade to version 7.0.0 or above.",
          "title": "Improper Authentication",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2019-10201",
            "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201"
          ],
          "uuid": "09d530a3-a6ec-4165-89e4-5c160a1866a9"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "6.0.1",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:redhat:single_sign-on:7.3.3:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2019-10201"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-347"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Mitigation",
                "Vendor Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2020-10-02T14:11Z",
      "publishedDate": "2019-08-14T17:15Z"
    }
  }
}


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