rhsa-2020_3496
Vulnerability from csaf_redhat
Published
2020-08-18 16:24
Modified
2024-11-05 22:39
Summary
Red Hat Security Advisory: Red Hat Single Sign-On 7.4.2 security update on RHEL 7

Notes

Topic
New Red Hat Single Sign-On 7.4.2 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 7.4 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 7.4.2 security update on RHEL 7 serves as a replacement for Red Hat Single Sign-On 7.4.1, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Security Fix(es): * keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than actual byte count of request body (CVE-2020-10758) * keycloak: security headers missing on REST endpoints (CVE-2020-1728) 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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        "text": "Red Hat Single Sign-On 7.4 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.\n\nThis release of Red Hat Single Sign-On 7.4.2 security update on RHEL 7 serves as a replacement for Red Hat Single Sign-On 7.4.1, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.\n\nSecurity Fix(es):\n\n* keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than actual byte count of request body (CVE-2020-10758)\n\n* keycloak: security headers missing on REST endpoints (CVE-2020-1728)\n\nFor 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.",
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      "cwe": {
        "id": "CWE-358",
        "name": "Improperly Implemented Security Check for Standard"
      },
      "discovery_date": "2020-02-07T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1800585"
        }
      ],
      "notes": [
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          "category": "description",
          "text": "A flaw was found in Keycloak\u2019s Admin Console, where it is missing HTTP security headers in HTTP responses. This issue is not a direct vulnerability and may not lead to a security issue, but increases the chances of allowing attackers to exploit other security flaws. Examples of these possible exploits are servers being prone to clickjacking, channel downgrade attacks, and other similar client-based attack vectors.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "keycloak: security headers missing on REST endpoints",
          "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": {
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-1728"
        },
        {
          "category": "external",
          "summary": "RHBZ#1800585",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1800585"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-1728",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-1728"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-1728",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1728"
        }
      ],
      "release_date": "2019-11-27T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-08-18T16:24:54+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant 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": [
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          ],
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      ],
      "scores": [
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          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "7Server-RHSSO-7.4:rh-sso7-keycloak-0:9.0.5-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.4:rh-sso7-keycloak-0:9.0.5-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.4:rh-sso7-keycloak-server-0:9.0.5-1.redhat_00001.1.el7sso.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "keycloak: security headers missing on REST endpoints"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Matt Hamilton"
          ],
          "organization": "Soluble.ai"
        }
      ],
      "cve": "CVE-2020-10758",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "discovery_date": "2020-06-02T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1843849"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Keycloak. This flaw allows an attacker to perform a denial of service attack by sending multiple simultaneous requests with a Content-Length header value greater than the actual byte count of the request body. The highest threat from this vulnerability is to system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than actual byte count of request body",
          "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": {
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-10758"
        },
        {
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          "summary": "RHBZ#1843849",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1843849"
        },
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-10758",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-10758"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-10758",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10758"
        }
      ],
      "release_date": "2020-08-18T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-08-18T16:24:54+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant 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": [
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            "7Server-RHSSO-7.4:rh-sso7-keycloak-0:9.0.5-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.4:rh-sso7-keycloak-server-0:9.0.5-1.redhat_00001.1.el7sso.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:3496"
        },
        {
          "category": "workaround",
          "details": "- The possibility of this issue largely depends on the environment, specifically the load balancer or reverse proxies between the client and the server. The issue occurs when there is no load balancer in place.\n\n- Proper tuning of HTTP request timeout and keycloak database max pool size can mitigate this issue :\nbin/jboss-cli.sh --connect --commands=\u0027/subsystem=transactions:write-attribute(name=default-timeout,value=30),/subsystem=undertow/server=default-server/http-listener=default/:write-attribute(name=read-timeout,value=30000),/subsystem=undertow/server=default-server/https-listener=https/:write-attribute(name=read-timeout,value=30000),/subsystem=datasources/data-source=KeycloakDS/:write-attribute(name=max-pool-size,value=100),reload\u0027",
          "product_ids": [
            "7Server-RHSSO-7.4:rh-sso7-keycloak-0:9.0.5-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.4:rh-sso7-keycloak-0:9.0.5-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.4:rh-sso7-keycloak-server-0:9.0.5-1.redhat_00001.1.el7sso.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "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": [
            "7Server-RHSSO-7.4:rh-sso7-keycloak-0:9.0.5-1.redhat_00001.1.el7sso.noarch",
            "7Server-RHSSO-7.4:rh-sso7-keycloak-0:9.0.5-1.redhat_00001.1.el7sso.src",
            "7Server-RHSSO-7.4:rh-sso7-keycloak-server-0:9.0.5-1.redhat_00001.1.el7sso.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than actual byte count of request body"
    }
  ]
}


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