{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Critical"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "A security update is now available for Red Hat Single Sign-On 7.3 from the Customer Portal.\n\nRed Hat Product Security has rated this update as having a security impact of Critical. 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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Red Hat Single Sign-On 7.3 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 asynchronous patch is a security update for the Undertow package in Red Hat Single Sign-On 7.3.7. \n\nSecurity Fix(es):\n\n* undertow: AJP File Read/Inclusion Vulnerability (CVE-2020-1745)\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.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "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.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2020:0952",
        "url": "https://access.redhat.com/errata/RHSA-2020:0952"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#critical",
        "url": "https://access.redhat.com/security/updates/classification/#critical"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso\u0026downloadType=securityPatches\u0026version=7.3",
        "url": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso\u0026downloadType=securityPatches\u0026version=7.3"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.3/",
        "url": "https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.3/"
      },
      {
        "category": "external",
        "summary": "1807305",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1807305"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_0952.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Single Sign-On 7.3.7 security update",
    "tracking": {
      "current_release_date": "2026-03-18T02:05:40+00:00",
      "generator": {
        "date": "2026-03-18T02:05:40+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.7.3"
        }
      },
      "id": "RHSA-2020:0952",
      "initial_release_date": "2020-03-23T20:18:21+00:00",
      "revision_history": [
        {
          "date": "2020-03-23T20:18:21+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2020-03-23T20:18:21+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-03-18T02:05:40+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Single Sign On 7.3",
                "product": {
                  "name": "Red Hat Single Sign On 7.3",
                  "product_id": "Red Hat Single Sign On 7.3",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:jboss_single_sign_on:7.3"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Single Sign-On"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Steve Zapantis",
            "Robert Roberson",
            "taktakdb4g"
          ]
        }
      ],
      "cve": "CVE-2020-1745",
      "cwe": {
        "id": "CWE-285",
        "name": "Improper Authorization"
      },
      "discovery_date": "2020-02-24T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1807305"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A file inclusion vulnerability was found in the AJP connector enabled with a default AJP configuration port of 8009 in Undertow version 2.0.29.Final and before. A remote, unauthenticated attacker could exploit this vulnerability to read web application files from a vulnerable server. In instances where the vulnerable server allows file uploads, an attacker could upload malicious JavaServer Pages (JSP) code within a variety of file types and trigger this vulnerability to gain remote code execution.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "undertow: AJP File Read/Inclusion Vulnerability",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Please refer to the Red Hat knowledgebase article: https://access.redhat.com/solutions/4851251 and CVE page https://access.redhat.com/security/cve/cve-2020-1938",
          "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"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Single Sign On 7.3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-1745"
        },
        {
          "category": "external",
          "summary": "RHBZ#1807305",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1807305"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-1745",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-1745"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-1745",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1745"
        },
        {
          "category": "external",
          "summary": "https://meterpreter.org/cve-2020-1938-apache-tomcat-ajp-connector-remote-code-execution-vulnerability-alert/",
          "url": "https://meterpreter.org/cve-2020-1938-apache-tomcat-ajp-connector-remote-code-execution-vulnerability-alert/"
        },
        {
          "category": "external",
          "summary": "https://www.cnvd.org.cn/webinfo/show/5415",
          "url": "https://www.cnvd.org.cn/webinfo/show/5415"
        },
        {
          "category": "external",
          "summary": "https://www.tenable.com/blog/cve-2020-1938-ghostcat-apache-tomcat-ajp-file-readinclusion-vulnerability-cnvd-2020-10487",
          "url": "https://www.tenable.com/blog/cve-2020-1938-ghostcat-apache-tomcat-ajp-file-readinclusion-vulnerability-cnvd-2020-10487"
        }
      ],
      "release_date": "2020-02-26T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-03-23T20:18:21+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link (you must log in to download the update).",
          "product_ids": [
            "Red Hat Single Sign On 7.3"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:0952"
        },
        {
          "category": "workaround",
          "details": "Please refer to the Red Hat knowledgebase article: https://access.redhat.com/solutions/4851251",
          "product_ids": [
            "Red Hat Single Sign On 7.3"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "Red Hat Single Sign On 7.3"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "undertow: AJP File Read/Inclusion Vulnerability"
    }
  ]
}