{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Polarion ALM is vulnerable to XML External Entity (XXE) injection attack that could allow an attacker to potentially disclose confidential data. \n\nSiemens has released an update for Polarion ALM and recommends to update to the latest version.",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens\u0027 operational guidelines for Industrial Security (Download: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity",
        "title": "General Recommendations"
      },
      {
        "category": "general",
        "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-632164: External Entity Injection Vulnerability in Polarion ALM - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-632164.html"
      },
      {
        "category": "self",
        "summary": "SSA-632164: External Entity Injection Vulnerability in Polarion ALM - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-632164.json"
      },
      {
        "category": "self",
        "summary": "SSA-632164: External Entity Injection Vulnerability in Polarion ALM - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-632164.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-632164: External Entity Injection Vulnerability in Polarion ALM - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-632164.txt"
      }
    ],
    "title": "SSA-632164: External Entity Injection Vulnerability in Polarion ALM",
    "tracking": {
      "current_release_date": "2023-05-09T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-632164",
      "initial_release_date": "2023-04-11T00:00:00Z",
      "revision_history": [
        {
          "date": "2023-04-11T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2023-05-09T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Corrected fix version to an earlier release of Polarion ALM that fixes the vulnerability; Updated CVSS rating of CVE-2023-28828"
        }
      ],
      "status": "interim",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:all/\u003cV22R2",
                "product": {
                  "name": "Polarion ALM",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "Polarion ALM"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-28828",
      "cwe": {
        "id": "CWE-611",
        "name": "Improper Restriction of XML External Entity Reference"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The application contains a XML External Entity Injection (XXE) vulnerability. This could allow an attacker to view files on the application server filesystem.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Set the below configurations to mitigate against external entity injection in OpenSAML 4.x parser configuration. This will be included by default on Polarion V2304 and later versions.  \n\n\nparserPool.setMaxPoolSize(100);\n\nparserPool.setCoalescing(true);\n\nparserPool.setIgnoreComments(true);\n\nparserPool.setIgnoreElementContentWhitespace(true);\n\nparserPool.setNamespaceAware(true);\n\nparserPool.setExpandEntityReferences(false);\n\nparserPool.setXincludeAware(false);\n\nfinal Map\u0026lt;String, Boolean\u0026gt; features = new\nHashMap\u0026lt;String, Boolean\u0026gt;();\n\nfeatures.put(http://xml.org/sax/features/external-general-entities, Boolean.FALSE);\n\nfeatures.put(http://xml.org/sax/features/external-parameter-entities, Boolean.FALSE);\n\nfeatures.put(http://apache.org/xml/features/disallow-doctype-decl, Boolean.TRUE);\n\nfeatures.put(http://apache.org/xml/features/validation/schema/normalized-value, Boolean.FALSE);\n\nfeatures.put(http://javax.xml.XMLConstants/feature/secure-processing, Boolean.TRUE);\n\nparserPool.setBuilderFeatures(features);",
          "product_ids": [
            "1"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V22R2 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.sw.siemens.com/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2023-28828"
    }
  ]
}