SSA-517377

Vulnerability from csaf_siemens - Published: 2022-07-12 00:00 - Updated: 2023-03-14 00:00
Summary
SSA-517377: Multiple Vulnerabilities in the SRCS VPN Feature in SIMATIC CP Devices

Notes

Summary
The below referenced devices contain multiple vulnerabilities that could be exploited when the SINEMA Remote Connect Server (SRCS) VPN feature is used. The feature is not activated by default. The most severe could allow an attacker to execute arbitrary code with elevated privileges under certain circumstances. Siemens has released updates for the affected products and recommends to update to the latest versions.
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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    "notes": [
      {
        "category": "summary",
        "text": "The below referenced devices contain multiple vulnerabilities that could be exploited when the SINEMA Remote Connect Server (SRCS) VPN feature is used. The feature is not activated by default. The most severe could allow an attacker to execute arbitrary code with elevated privileges under certain circumstances.\n\nSiemens has released updates for the affected products and recommends to update to the latest versions.",
        "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",
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        "title": "Additional Resources"
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      {
        "category": "legal_disclaimer",
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-34819",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The application lacks proper validation of user-supplied data when parsing specific messages. This could result in a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of device.",
          "title": "Summary"
        }
      ],
      "product_status": {
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          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
          "12",
          "13",
          "14",
          "15"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Make sure to configure the CP to only connect to trusted SINEMA Remote Connect Server instances",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        },
        {
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          "details": "Update to V2.2.28 or later version",
          "product_ids": [
            "6",
            "8",
            "9",
            "10",
            "11"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109817067/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.3.46 or later version",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "12",
            "14",
            "15"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109812218"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.0.22 or later version",
          "product_ids": [
            "7",
            "13"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109808678/"
        },
        {
          "category": "workaround",
          "details": "Block access to port 5243/udp e.g. with an external firewall if possible",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        },
        {
          "category": "workaround",
          "details": "Disable the SINEMA Remote Connect Server (SRCS) VPN feature",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        }
      ],
      "scores": [
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          "cvss_v3": {
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            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
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            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        }
      ],
      "title": "CVE-2022-34819"
    },
    {
      "cve": "CVE-2022-34820",
      "cwe": {
        "id": "CWE-77",
        "name": "Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The application does not correctly escape some user provided fields during the authentication process. This could allow an attacker to inject custom commands and execute arbitrary code with elevated privileges.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
          "12",
          "13",
          "14",
          "15"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Make sure to configure the CP to only connect to trusted SINEMA Remote Connect Server instances",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
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        {
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          "details": "Update to V2.2.28 or later version",
          "product_ids": [
            "6",
            "8",
            "9",
            "10",
            "11"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109817067/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.3.46 or later version",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "12",
            "14",
            "15"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109812218"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.0.22 or later version",
          "product_ids": [
            "7",
            "13"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109808678/"
        },
        {
          "category": "workaround",
          "details": "Block access to port 5243/udp e.g. with an external firewall if possible",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        },
        {
          "category": "workaround",
          "details": "Disable the SINEMA Remote Connect Server (SRCS) VPN feature",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        }
      ],
      "title": "CVE-2022-34820"
    },
    {
      "cve": "CVE-2022-34821",
      "cwe": {
        "id": "CWE-94",
        "name": "Improper Control of Generation of Code (\u0027Code Injection\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "By injecting code to specific configuration options for OpenVPN, an attacker could execute arbitrary code with elevated privileges.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
          "12",
          "13",
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      "remediations": [
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          "category": "mitigation",
          "details": "Make sure to configure the CP to only connect to trusted SINEMA Remote Connect Server instances",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.2.28 or later version",
          "product_ids": [
            "6",
            "8",
            "9",
            "10",
            "11"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109817067/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.3.46 or later version",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "12",
            "14",
            "15"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109812218"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.0.22 or later version",
          "product_ids": [
            "7",
            "13"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109808678/"
        },
        {
          "category": "workaround",
          "details": "Block access to port 5243/udp e.g. with an external firewall if possible",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        },
        {
          "category": "workaround",
          "details": "Disable the SINEMA Remote Connect Server (SRCS) VPN feature",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15"
          ]
        }
      ],
      "title": "CVE-2022-34821"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.