csaf_cisa - icsa-22-132-13

icsa-22-132-13

Vulnerability from csaf_cisa

Published

2022-05-12 00:00

Modified

2022-06-16 00:00

Summary

Siemens Industrial Devices using libcurl

Notes

CISA Disclaimer

This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

Legal Notice

All information products included in https://us-cert.cisa.gov/ics are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.

Risk evaluation

Successful exploitation of these vulnerabilities could crash and allow an attacker to interfere with the affected products in various ways.

Critical infrastructure sectors

Critical Manufacturing

Countries/areas deployed

Worldwide

Company headquarters location

Germany

Recommended Practices

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:

Recommended Practices

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

Recommended Practices

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on cisa.gov/ics in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.

Additional Resources

For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories

Exploitability

No known public exploits specifically target these vulnerabilities. These vulnerabilities have a high attack complexity.

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{
  "document": {
    "acknowledgments": [
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        "organization": "Siemens",
        "summary": "notifying CISA these devices are affected by these known vulnerabilities"
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    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
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    "notes": [
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        "text": "This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov",
        "title": "CISA Disclaimer"
      },
      {
        "category": "legal_disclaimer",
        "text": "All information products included in https://us-cert.cisa.gov/ics are provided \"as is\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see https://us-cert.cisa.gov/tlp/.",
        "title": "Legal Notice"
      },
      {
        "category": "summary",
        "text": "Successful exploitation of these vulnerabilities could crash and allow an attacker to interfere with the affected products in various ways.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
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        "title": "Critical infrastructure sectors"
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        "title": "Recommended Practices"
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        "title": "Recommended Practices"
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        "title": "Recommended Practices"
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      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
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    "references": [
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                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SIPLUS NET CP 1543-1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V3.3.46",
                "product": {
                  "name": "SIPLUS S7-1200 CP 1243-1",
                  "product_id": "CSAFPID-00033",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6AG1243-1BX30-2AX0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SIPLUS S7-1200 CP 1243-1"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V3.3.46",
                "product": {
                  "name": "SIPLUS S7-1200 CP 1243-1 RAIL",
                  "product_id": "CSAFPID-00034",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6AG2243-1BX30-1XE0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SIPLUS S7-1200 CP 1243-1 RAIL"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-22901",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "notes": [
        {
          "category": "summary",
          "text": "curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session ticket arrives over a connection. A malicious server can use this in rare unfortunate circumstances to potentially reach remote code execution in the client. When libcurl at run-time sets up support for TLS 1.3 session tickets on a connection using OpenSSL, it stores pointers to the transfer in-memory object for later retrieval when a session ticket arrives. If the connection is used by multiple transfers (like with a reused HTTP/1.1 connection or multiplexed HTTP/2 connection) that first transfer object might be freed before the new session is established on that connection and then the function will access a memory buffer that might be freed. When using that memory, libcurl might even call a function pointer in the object, making it possible for a remote code execution if the server could somehow manage to get crafted memory content into the correct place in memory.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-00019",
          "CSAFPID-00020",
          "CSAFPID-00021",
          "CSAFPID-00022",
          "CSAFPID-00023",
          "CSAFPID-00024",
          "CSAFPID-00025",
          "CSAFPID-00031",
          "CSAFPID-00032",
          "CSAFPID-00033",
          "CSAFPID-00034"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22901"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Update to V1.1 or later version",
          "product_ids": [
            "CSAFPID-00025"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109811116/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.0.22 or later version",
          "product_ids": [
            "CSAFPID-00024",
            "CSAFPID-00032"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109808678"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.3.46 or later version",
          "product_ids": [
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00031",
            "CSAFPID-00033",
            "CSAFPID-00034"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109812218"
        },
        {
          "category": "mitigation",
          "details": "As a general security measure, Siemens strongly recommends to protect\nnetwork access to devices with appropriate mechanisms. In order to\noperate the devices in a protected IT environment, Siemens recommends\nto configure the environment according to Siemens\u0027 operational\nguidelines for Industrial Security (Download:\nhttps://www.siemens.com/cert/operational-guidelines-industrial-\nsecurity), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found\nat: https://www.siemens.com/industrialsecurity",
          "product_ids": [
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00024",
            "CSAFPID-00025",
            "CSAFPID-00031",
            "CSAFPID-00032",
            "CSAFPID-00033",
            "CSAFPID-00034"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00024",
            "CSAFPID-00025",
            "CSAFPID-00031",
            "CSAFPID-00032",
            "CSAFPID-00033",
            "CSAFPID-00034"
          ]
        }
      ],
      "title": "CVE-2021-22901"
    },
    {
      "cve": "CVE-2021-22924",
      "cwe": {
        "id": "CWE-706",
        "name": "Use of Incorrectly-Resolved Name or Reference"
      },
      "notes": [
        {
          "category": "summary",
          "text": "libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse, if one of them matches the setup. Due to errors in the logic, the config matching function did not take \u0027issuercert\u0027 into account and it compared the involved paths *case insensitively*, which could lead to libcurl reusing wrong connections. File paths are, or can be, case sensitive on many systems but not all, and can even vary depending on used file systems. The comparison also didn\u0027t include the \u0027issuer cert\u0027 which a transfer can set to qualify how to verify the server certificate.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005",
          "CSAFPID-0006",
          "CSAFPID-0007",
          "CSAFPID-0008",
          "CSAFPID-0009",
          "CSAFPID-00010",
          "CSAFPID-00011",
          "CSAFPID-00012",
          "CSAFPID-00013",
          "CSAFPID-00014",
          "CSAFPID-00015",
          "CSAFPID-00016",
          "CSAFPID-00017",
          "CSAFPID-00018",
          "CSAFPID-00019",
          "CSAFPID-00020",
          "CSAFPID-00021",
          "CSAFPID-00022",
          "CSAFPID-00023",
          "CSAFPID-00024",
          "CSAFPID-00025",
          "CSAFPID-00026",
          "CSAFPID-00027",
          "CSAFPID-00028",
          "CSAFPID-00029",
          "CSAFPID-00030",
          "CSAFPID-00031",
          "CSAFPID-00032",
          "CSAFPID-00033",
          "CSAFPID-00034"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22924"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Use the certificate projection feature to pin the valid certificates\nof external servers providing the services E-mail and DynDNS to the\naffected devices. To do this, see the description in the sections \"Ca\nCertificate\" in the chapters \"E-Mail\" and \"DynDNS\" in the manual",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "no_fix_planned",
          "details": "Currently no fix is planned",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.1 or later version",
          "product_ids": [
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012",
            "CSAFPID-00013",
            "CSAFPID-00014",
            "CSAFPID-00015",
            "CSAFPID-00016",
            "CSAFPID-00017",
            "CSAFPID-00018"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109807276"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V1.1 or later version",
          "product_ids": [
            "CSAFPID-00025"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109811116/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.0.22 or later version",
          "product_ids": [
            "CSAFPID-00024",
            "CSAFPID-00032"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109808678"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V5.0.14 or later version",
          "product_ids": [
            "CSAFPID-00026",
            "CSAFPID-00027",
            "CSAFPID-00028",
            "CSAFPID-00029"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109810215/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.1 or later version",
          "product_ids": [
            "CSAFPID-00030"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109811169/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.3.46 or later version",
          "product_ids": [
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00031",
            "CSAFPID-00033",
            "CSAFPID-00034"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109812218"
        },
        {
          "category": "mitigation",
          "details": "As a general security measure, Siemens strongly recommends to protect\nnetwork access to devices with appropriate mechanisms. In order to\noperate the devices in a protected IT environment, Siemens recommends\nto configure the environment according to Siemens\u0027 operational\nguidelines for Industrial Security (Download:\nhttps://www.siemens.com/cert/operational-guidelines-industrial-\nsecurity), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found\nat: https://www.siemens.com/industrialsecurity",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012",
            "CSAFPID-00013",
            "CSAFPID-00014",
            "CSAFPID-00015",
            "CSAFPID-00016",
            "CSAFPID-00017",
            "CSAFPID-00018",
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00024",
            "CSAFPID-00025",
            "CSAFPID-00026",
            "CSAFPID-00027",
            "CSAFPID-00028",
            "CSAFPID-00029",
            "CSAFPID-00030",
            "CSAFPID-00031",
            "CSAFPID-00032",
            "CSAFPID-00033",
            "CSAFPID-00034"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005",
            "CSAFPID-0006",
            "CSAFPID-0007",
            "CSAFPID-0008",
            "CSAFPID-0009",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012",
            "CSAFPID-00013",
            "CSAFPID-00014",
            "CSAFPID-00015",
            "CSAFPID-00016",
            "CSAFPID-00017",
            "CSAFPID-00018",
            "CSAFPID-00019",
            "CSAFPID-00020",
            "CSAFPID-00021",
            "CSAFPID-00022",
            "CSAFPID-00023",
            "CSAFPID-00024",
            "CSAFPID-00025",
            "CSAFPID-00026",
            "CSAFPID-00027",
            "CSAFPID-00028",
            "CSAFPID-00029",
            "CSAFPID-00030",
            "CSAFPID-00031",
            "CSAFPID-00032",
            "CSAFPID-00033",
            "CSAFPID-00034"
          ]
        }
      ],
      "title": "CVE-2021-22924"
    }
  ]
}

cve-2021-22924

Vulnerability from cvelistv5

Published

2021-08-05 20:16

Modified

2024-08-03 18:58

Severity

Summary

libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.

References

URL	Tags
https://hackerone.com/reports/1223565	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/	vendor-advisory, x_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2021/08/msg00017.html	mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cdev.kafka.apache.org%3E	mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc%40%3Cusers.kafka.apache.org%3E	mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cusers.kafka.apache.org%3E	mailing-list, x_refsource_MLIST
https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7%40%3Cdev.kafka.apache.org%3E	mailing-list, x_refsource_MLIST
https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210902-0003/	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdf	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf	x_refsource_CONFIRM
https://www.debian.org/security/2022/dsa-5197	vendor-advisory, x_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.html	mailing-list, x_refsource_MLIST

Impacted products

Vendor	Product
n/a	https://github.com/curl/curl

Show details on NVD website

JSON

To clipboard

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            "url": "https://hackerone.com/reports/1223565"
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            "tags": [
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          },
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          "vendor": "n/a",
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cve-2021-22901

Vulnerability from cvelistv5

Published

2021-06-11 15:49

Modified

2024-08-03 18:58

Severity

Summary

curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session ticket arrives over a connection. A malicious server can use this in rare unfortunate circumstances to potentially reach remote code execution in the client. When libcurl at run-time sets up support for TLS 1.3 session tickets on a connection using OpenSSL, it stores pointers to the transfer in-memory object for later retrieval when a session ticket arrives. If the connection is used by multiple transfers (like with a reused HTTP/1.1 connection or multiplexed HTTP/2 connection) that first transfer object might be freed before the new session is established on that connection and then the function will access a memory buffer that might be freed. When using that memory, libcurl might even call a function pointer in the object, making it possible for a remote code execution if the server could somehow manage to get crafted memory content into the correct place in memory.

References

URL	Tags
https://hackerone.com/reports/1180380	x_refsource_MISC
https://curl.se/docs/CVE-2021-22901.html	x_refsource_MISC
https://github.com/curl/curl/commit/7f4a9a9b2a49547eae24d2e19bc5c346e9026479	x_refsource_MISC
https://www.oracle.com//security-alerts/cpujul2021.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210723-0001/	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpujan2022.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210727-0007/	x_refsource_CONFIRM
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-732250.pdf	x_refsource_CONFIRM

Impacted products

Vendor	Product
n/a	https://github.com/curl/curl

Show details on NVD website

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To clipboard

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Action not permitted

icsa-22-132-13

Vulnerability from csaf_cisa

cve-2021-22924

Vulnerability from cvelistv5

cve-2021-22901

Vulnerability from cvelistv5

Tags