icsa-21-105-01
Vulnerability from csaf_cisa
Published
2021-04-15 00:00
Modified
2021-04-15 00:00
Summary
Schneider Electric C-Bus Toolkit

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 may allow remote code execution.
Critical infrastructure sectors
Commercial Facilities
Countries/areas deployed
Worldwide
Company headquarters location
France
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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 onus-cert.cisa.gov. 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 us-cert.cisa.gov 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.
Exploitability
No known public exploits specifically target these vulnerabilities.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "rgod"
        ],
        "organization": "Trend Micro Zero Day Initiative",
        "summary": "reporting these vulnerabilities to CISA"
      },
      {
        "names": [
          "Simon Zuckerbraun"
        ],
        "organization": "Trend Micro \u0027s Zero Day Initiative",
        "summary": "reporting these vulnerabilities to CISA"
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited",
      "tlp": {
        "label": "WHITE",
        "url": "https://us-cert.cisa.gov/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "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 may allow remote code execution.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Commercial Facilities",
        "title": "Critical infrastructure sectors"
      },
      {
        "category": "other",
        "text": "Worldwide",
        "title": "Countries/areas deployed"
      },
      {
        "category": "other",
        "text": "France",
        "title": "Company headquarters location"
      },
      {
        "category": "general",
        "text": "CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.\nCISA also provides a section for control systems security recommended practices on the ICS webpage onus-cert.cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
        "title": "Recommended Practices"
      },
      {
        "category": "general",
        "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.\nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.",
        "title": "Recommended Practices"
      },
      {
        "category": "other",
        "text": "No known public exploits specifically target these vulnerabilities.",
        "title": "Exploitability"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "references": [
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-21-105-01 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-105-01.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-21-105-01 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-105-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-10-301-01"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
      },
      {
        "category": "external",
        "summary": "Recommended Practices",
        "url": "https://us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B"
      }
    ],
    "title": "Schneider Electric C-Bus Toolkit",
    "tracking": {
      "current_release_date": "2021-04-15T00:00:00.000000Z",
      "generator": {
        "engine": {
          "name": "CISA CSAF Generator",
          "version": "1.0.0"
        }
      },
      "id": "ICSA-21-105-01",
      "initial_release_date": "2021-04-15T00:00:00.000000Z",
      "revision_history": [
        {
          "date": "2021-04-15T00:00:00.000000Z",
          "legacy_version": "Initial",
          "number": "1",
          "summary": "ICSA-21-105-01 Schneider Electric C-Bus Toolkit"
        },
        {
          "date": "2021-04-15T00:00:00.000000Z",
          "legacy_version": "A",
          "number": "2",
          "summary": "ICSA-21-105-01 Schneider Electric C-Bus Toolkit (Update A)"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c= 1.15.7",
                "product": {
                  "name": "C-Bus Toolkit: v1.15.7 and prior",
                  "product_id": "CSAFPID-0001"
                }
              }
            ],
            "category": "product_name",
            "name": "C-Bus Toolkit"
          }
        ],
        "category": "vendor",
        "name": "Schneider Electric Software, LLC"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-22716",
      "cwe": {
        "id": "CWE-269",
        "name": "Improper Privilege Management"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected product is vulnerable to Improper Privilege Management, which could allow remote code execution when an unprivileged user modifies a file.CVE-2021-22716 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22716"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Schneider Electric recommends users update to the latest version available. A reboot will be needed after the update.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://updates.clipsal.com/ClipsalSoftwareDownload/mainsite/cis/technical/downloads/c-bus_toolkit.html"
        },
        {
          "category": "mitigation",
          "details": "If users choose not to apply the remediation provided above they should immediately apply the following mitigations to reduce the risk of exploit: Use an allow list for this application. Turn on the workstation\u2019s firewall. Use an antivirus program. Secure the workstation from unauthorized personnel.",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "mitigation",
          "details": "Please see Schneider Electric\u2019s publication SEVD-2021-103-01 for more information.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-103-01"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001"
          ]
        }
      ]
    },
    {
      "cve": "CVE-2021-22717",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected product is vulnerable to Path Traversal, which could allow remote code execution when processing config files.CVE-2021-22717 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22717"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Schneider Electric recommends users update to the latest version available. A reboot will be needed after the update.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://updates.clipsal.com/ClipsalSoftwareDownload/mainsite/cis/technical/downloads/c-bus_toolkit.html"
        },
        {
          "category": "mitigation",
          "details": "If users choose not to apply the remediation provided above they should immediately apply the following mitigations to reduce the risk of exploit: Use an allow list for this application. Turn on the workstation\u2019s firewall. Use an antivirus program. Secure the workstation from unauthorized personnel.",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "mitigation",
          "details": "Please see Schneider Electric\u2019s publication SEVD-2021-103-01 for more information.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-103-01"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001"
          ]
        }
      ]
    },
    {
      "cve": "CVE-2021-22718",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected product is vulnerable to Path Traversal, which could allow remote code execution when restoring project files.CVE-2021-22718 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been assigned; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22718"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Schneider Electric recommends users update to the latest version available. A reboot will be needed after the update.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://updates.clipsal.com/ClipsalSoftwareDownload/mainsite/cis/technical/downloads/c-bus_toolkit.html"
        },
        {
          "category": "mitigation",
          "details": "If users choose not to apply the remediation provided above they should immediately apply the following mitigations to reduce the risk of exploit: Use an allow list for this application. Turn on the workstation\u2019s firewall. Use an antivirus program. Secure the workstation from unauthorized personnel.",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "mitigation",
          "details": "Please see Schneider Electric\u2019s publication SEVD-2021-103-01 for more information.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-103-01"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001"
          ]
        }
      ]
    },
    {
      "cve": "CVE-2021-22719",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected product is vulnerable to Path Traversal, which could allow remote code execution when a file is uploaded.CVE-2021-22719 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22719"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Schneider Electric recommends users update to the latest version available. A reboot will be needed after the update.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://updates.clipsal.com/ClipsalSoftwareDownload/mainsite/cis/technical/downloads/c-bus_toolkit.html"
        },
        {
          "category": "mitigation",
          "details": "If users choose not to apply the remediation provided above they should immediately apply the following mitigations to reduce the risk of exploit: Use an allow list for this application. Turn on the workstation\u2019s firewall. Use an antivirus program. Secure the workstation from unauthorized personnel.",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "mitigation",
          "details": "Please see Schneider Electric\u2019s publication SEVD-2021-103-01 for more information.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-103-01"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001"
          ]
        }
      ]
    },
    {
      "cve": "CVE-2021-22720",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "The affected product is vulnerable to Path Traversal, which could allow remote code execution when restoring a project.CVE-2021-22720 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).",
          "title": "Vulnerability Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-0001"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-22720"
        },
        {
          "category": "external",
          "summary": "www.first.org",
          "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "remediations": [
        {
          "category": "mitigation",
          "details": "Schneider Electric recommends users update to the latest version available. A reboot will be needed after the update.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://updates.clipsal.com/ClipsalSoftwareDownload/mainsite/cis/technical/downloads/c-bus_toolkit.html"
        },
        {
          "category": "mitigation",
          "details": "If users choose not to apply the remediation provided above they should immediately apply the following mitigations to reduce the risk of exploit: Use an allow list for this application. Turn on the workstation\u2019s firewall. Use an antivirus program. Secure the workstation from unauthorized personnel.",
          "product_ids": [
            "CSAFPID-0001"
          ]
        },
        {
          "category": "mitigation",
          "details": "Please see Schneider Electric\u2019s publication SEVD-2021-103-01 for more information.",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "url": "https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-103-01"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-0001"
          ]
        }
      ]
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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