gsd-2020-1758
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.
Aliases
Aliases
CVE-2020-1758


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-1758",
    "description": "A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.",
    "id": "GSD-2020-1758",
    "references": [
      "https://access.redhat.com/errata/RHSA-2020:2112",
      "https://access.redhat.com/errata/RHSA-2020:2108",
      "https://access.redhat.com/errata/RHSA-2020:2107",
      "https://access.redhat.com/errata/RHSA-2020:2106"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-1758"
      ],
      "details": "A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.",
      "id": "GSD-2020-1758",
      "modified": "2023-12-13T01:21:58.658371Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2020-1758",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "keycloak",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "keycloak versions before 10.0.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Red Hat"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack."
          }
        ]
      },
      "impact": {
        "cvss": [
          [
            {
              "vectorString": "5.3/CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
              "version": "3.0"
            }
          ]
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-297"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758"
          },
          {
            "name": "https://issues.redhat.com/browse/KEYCLOAK-13285",
            "refsource": "MISC",
            "url": "https://issues.redhat.com/browse/KEYCLOAK-13285"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,10.0.0)",
          "affected_versions": "All versions before 10.0.0",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-295",
            "CWE-937"
          ],
          "date": "2020-05-19",
          "description": "A flaw was found in Keycloak where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.",
          "fixed_versions": [
            "10.0.0"
          ],
          "identifier": "CVE-2020-1758",
          "identifiers": [
            "CVE-2020-1758"
          ],
          "not_impacted": "All versions starting from 10.0.0",
          "package_slug": "maven/org.keycloak/keycloak-core",
          "pubdate": "2020-05-15",
          "solution": "Upgrade to version 10.0.0 or above.",
          "title": "Improper Certificate Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-1758",
            "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758",
            "https://issues.redhat.com/browse/KEYCLOAK-13285"
          ],
          "uuid": "bb5f2bbf-791d-48ae-93e6-93a7423b37d7"
        },
        {
          "affected_range": "(,10.0.0)",
          "affected_versions": "All versions before 10.0.0",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-295",
            "CWE-937"
          ],
          "date": "2022-02-09",
          "description": "A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.",
          "fixed_versions": [
            "10.0.0"
          ],
          "identifier": "CVE-2020-1758",
          "identifiers": [
            "GHSA-c597-f74m-jgc2",
            "CVE-2020-1758"
          ],
          "not_impacted": "All versions starting from 10.0.0",
          "package_slug": "maven/org.keycloak/keycloak-parent",
          "pubdate": "2022-02-09",
          "solution": "Upgrade to version 10.0.0 or above.",
          "title": "Improper Certificate Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-1758",
            "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758",
            "https://issues.redhat.com/browse/KEYCLOAK-13285",
            "https://github.com/advisories/GHSA-c597-f74m-jgc2"
          ],
          "uuid": "a33fc073-b279-4d2e-82d8-8a38d15e61cd"
        },
        {
          "affected_range": "(,10.0.0)",
          "affected_versions": "All versions before 10.0.0",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-295",
            "CWE-937"
          ],
          "date": "2020-05-19",
          "description": "A flaw was found in Keycloak where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.",
          "fixed_versions": [
            "10.0.0"
          ],
          "identifier": "CVE-2020-1758",
          "identifiers": [
            "CVE-2020-1758"
          ],
          "not_impacted": "All versions starting from 10.0.0",
          "package_slug": "maven/org.keycloak/keycloak-services",
          "pubdate": "2020-05-15",
          "solution": "Upgrade to version 10.0.0 or above.",
          "title": "Improper Certificate Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-1758",
            "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758",
            "https://issues.redhat.com/browse/KEYCLOAK-13285"
          ],
          "uuid": "d3ce013b-fc3a-4f28-a885-4a754f263063"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "10.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2020-1758"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-295"
                }
              ]
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://issues.redhat.com/browse/KEYCLOAK-13285",
              "refsource": "MISC",
              "tags": [
                "Permissions Required",
                "Vendor Advisory"
              ],
              "url": "https://issues.redhat.com/browse/KEYCLOAK-13285"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Vendor Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1758"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2020-05-19T14:16Z",
      "publishedDate": "2020-05-15T19:15Z"
    }
  }
}


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