SSA-740908

Vulnerability from csaf_siemens - Published: 2021-11-09 00:00 - Updated: 2021-11-09 00:00
Summary
SSA-740908: File Parsing Vulnerabilities in JT Translator in NX

Notes

Summary
Siemens NX is affected by two vulnerabilities that could be triggered when the application reads JT files. If a user is tricked to open a malicious file with the affected application, this could lead to an access violation, and potentially also to arbitrary code execution on the target host system. Siemens has released an update for the NX 1980 Series and recommends to update to the latest version. Siemens recommends to avoid opening of untrusted files from unknown sources.
General Recommendations
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' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use
Siemens Security Advisories are subject to the terms and conditions contained in Siemens' 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' 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.
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{
  "document": {
    "category": "Siemens Security Advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited.",
      "tlp": {
        "label": "WHITE"
      }
    },
    "notes": [
      {
        "category": "summary",
        "text": "Siemens NX is affected by two vulnerabilities that could be triggered when the application reads JT files. If a user is tricked to open a malicious file with the affected application, this could lead to an access violation, and potentially also to arbitrary code execution on the target host system.\n\nSiemens has released an update for the NX 1980 Series and recommends to update to the latest version. Siemens recommends to avoid opening of untrusted files from unknown sources.",
        "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: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\n\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-740908: File Parsing Vulnerabilities in JT Translator in NX - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-740908.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-740908: File Parsing Vulnerabilities in JT Translator in NX - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-740908.txt"
      },
      {
        "category": "self",
        "summary": "SSA-740908: File Parsing Vulnerabilities in JT Translator in NX - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-740908.json"
      }
    ],
    "title": "SSA-740908: File Parsing Vulnerabilities in JT Translator in NX",
    "tracking": {
      "current_release_date": "2021-11-09T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-740908",
      "initial_release_date": "2021-11-09T00:00:00Z",
      "revision_history": [
        {
          "date": "2021-11-09T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V1984",
                "product": {
                  "name": "NX 1980 Series",
                  "product_id": "1"
                }
              }
            ],
            "category": "product_name",
            "name": "NX 1980 Series"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-41533",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected application is vulnerable to an out of bounds read past the end of an allocated buffer when parsing JT files.\n\nAn attacker could leverage this vulnerability to leak information in the context of the current process (ZDI-CAN-13565).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-41533 - NX 1980 Series",
          "url": "https://support.sw.siemens.com/"
        },
        {
          "summary": "CVE-2021-41533 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-41533.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V1984 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.sw.siemens.com/"
        },
        {
          "category": "mitigation",
          "details": "Avoid opening files from unknown sources in NX",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:T/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-41533"
    },
    {
      "cve": "CVE-2021-41534",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected application is vulnerable to an out of bounds read past the end of an allocated buffer when parsing JT files.\n\nAn attacker could leverage this vulnerability to leak information in the context of the current process (ZDI-CAN-13703).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "summary": "CVE-2021-41534 - NX 1980 Series",
          "url": "https://support.sw.siemens.com/"
        },
        {
          "summary": "CVE-2021-41534 Mitre 5.0 json",
          "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2021-41534.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V1984 or later version",
          "product_ids": [
            "1"
          ],
          "url": "https://support.sw.siemens.com/"
        },
        {
          "category": "mitigation",
          "details": "Avoid opening files from unknown sources in NX",
          "product_ids": [
            "1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:T/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "title": "CVE-2021-41534"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.