rhsa-2023_3883
Vulnerability from csaf_redhat
Published
2023-06-27 19:02
Modified
2024-11-06 03:15
Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.6.4 security update on RHEL 7

Notes

Topic
New Red Hat Single Sign-On 7.6.4 packages are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Red Hat Single Sign-On 7.6 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. This release of Red Hat Single Sign-On 7.6.4 on RHEL 7 serves as a replacement for Red Hat Single Sign-On 7.6.3, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Security Fix(es): * keycloak: Cross-site scripting when validating URI-schemes on SAML and OIDC (CVE-2022-4361) * undertow: Infinite loop in SslConduit during close (CVE-2023-1108) * keycloak: oauth client impersonation (CVE-2023-2422) * keycloak: Untrusted Certificate Validation (CVE-2023-1664) * keycloak: client access via device auth request spoof (CVE-2023-2585) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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          "title": "Vulnerability description"
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
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    },
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      "cwe": {
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        "name": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
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          "category": "description",
          "text": "A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Undertow: Infinite loop in SslConduit during close",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "summary": "https://github.com/advisories/GHSA-m4mm-pg93-fv78",
          "url": "https://github.com/advisories/GHSA-m4mm-pg93-fv78"
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          "date": "2023-06-27T19:02:06+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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      "scores": [
        {
          "cvss_v3": {
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            "attackVector": "NETWORK",
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "Undertow: Infinite loop in SslConduit during close"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Henrik Oehmke"
          ],
          "organization": "adesso SE"
        }
      ],
      "cve": "CVE-2023-1664",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2023-03-27T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2182196"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Keycloak. This flaw depends on a non-default configuration \"Revalidate Client Certificate\" to be enabled and the reverse proxy is not validating the certificate before Keycloak. Using this method an attacker may choose the certificate which will be validated by the server. If this happens and the KC_SPI_TRUSTSTORE_FILE_FILE variable is missing/misconfigured, any trustfile may be accepted with the logging information of \"Cannot validate client certificate trust: Truststore not available\". \r\n\r\nThis may not impact availability, but consumer applications Integrity or Confidentiality. Considering the environment is correctly set, this flaw is avoidable by configuring the server.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "keycloak: Untrusted Certificate Validation",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat Impact rated as a low impact considering there\u0027s a mitigation for this issue which would be consider the environment is correctly set with the truststore file. With these settings, the environment there\u0027s no evidence of attack possibility. Also it\u0027s possible to track under the server logs for more evidences.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-1664"
        },
        {
          "category": "external",
          "summary": "RHBZ#2182196",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2182196"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-1664",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-1664"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-1664",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1664"
        },
        {
          "category": "external",
          "summary": "https://github.com/advisories/GHSA-5cc8-pgp5-7mpm",
          "url": "https://github.com/advisories/GHSA-5cc8-pgp5-7mpm"
        }
      ],
      "release_date": "2023-03-27T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-06-27T19:02:06+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2023:3883"
        },
        {
          "category": "workaround",
          "details": "Make sure KC_SPI_TRUSTSTORE_FILE_FILE is correctly set and the logs are not reporting the \"Cannot validate client certificate trust: Truststore not available\" after an attempt to explore the vulnerability. Note this message may happen under other scenarios and reasons but the expected behavior would be that a non-valid certificate to pass.",
          "product_ids": [
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "keycloak: Untrusted Certificate Validation"
    },
    {
      "cve": "CVE-2023-2422",
      "cwe": {
        "id": "CWE-295",
        "name": "Improper Certificate Validation"
      },
      "discovery_date": "2023-04-25T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2191668"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Keycloak. A Keycloak server configured to support mTLS authentication for OAuth/OpenID clients does not properly verify the client certificate chain. A client that possesses a proper certificate can authorize itself as any other client, therefore, access data that belongs to other clients.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "keycloak: oauth client impersonation",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
          "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
          "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-2422"
        },
        {
          "category": "external",
          "summary": "RHBZ#2191668",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2191668"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-2422",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-2422"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-2422",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2422"
        }
      ],
      "release_date": "2023-06-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-06-27T19:02:06+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2023:3883"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "keycloak: oauth client impersonation"
    },
    {
      "cve": "CVE-2023-2585",
      "cwe": {
        "id": "CWE-358",
        "name": "Improperly Implemented Security Check for Standard"
      },
      "discovery_date": "2023-04-24T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2196335"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Keycloak\u0027s device authorization grant does not correctly validate the device code and client ID. An attacker client could abuse the missing validation to spoof a client consent request and trick an authorization admin into granting consent to a malicious OAuth client or possible unauthorized access to an existing OAuth client.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "keycloak: client access via device auth request spoof",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
          "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
          "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-2585"
        },
        {
          "category": "external",
          "summary": "RHBZ#2196335",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2196335"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-2585",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-2585"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-2585",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2585"
        }
      ],
      "release_date": "2023-06-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-06-27T19:02:06+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2023:3883"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-0:18.0.8-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.6:rh-sso7-keycloak-server-0:18.0.8-1.redhat_00001.1.el7sso.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "keycloak: client access via device auth request spoof"
    }
  ]
}


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  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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