BSI-2022-0001

Vulnerability from csaf_certbund - Published: 2022-03-17 13:03 - Updated: 2022-07-14 08:20
Summary
CVRF-CSAF-Converter: XML External Entities Vulnerability

Notes

Legal disclaimer
As a content provider, BSI is responsible under general law for its own content distributed for use. However, it remains your responsibility to carefully check usage and/or implementation of information provided with the content.
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{
  "document": {
    "aggregate_severity": {
      "text": "Moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "As a content provider, BSI is responsible under general law for its own content distributed for use. However, it remains your responsibility to carefully check usage and/or implementation of information provided with the content.",
        "title": "Legal disclaimer"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "BSI-2022-0001 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2022/bsi-2022-0001.json"
      }
    ],
    "title": "CVRF-CSAF-Converter: XML External Entities Vulnerability",
    "tracking": {
      "current_release_date": "2022-07-14T08:20:40.872Z",
      "generator": {
        "date": "2022-07-14T08:27:20.489Z",
        "engine": {
          "name": "Secvisogram",
          "version": "1.14.0"
        }
      },
      "id": "BSI-2022-0001",
      "initial_release_date": "2022-03-17T13:03:42.105Z",
      "revision_history": [
        {
          "date": "2022-03-17T13:03:42.105Z",
          "number": "1",
          "summary": "Initial revision"
        },
        {
          "date": "2022-07-14T08:20:40.872Z",
          "number": "2",
          "summary": "Add legal disclaimer and canonical url, adjust vulnerability description to CVE description."
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "1.0.0-alpha",
                "product": {
                  "name": "CSAF Tools CVRF-CSAF-Converter 1.0.0-alpha",
                  "product_id": "CSAFPID-0001",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:csaf-tools:cvrf-csaf-converter:1.0.0-alpha"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "1.0.0-dev1",
                "product": {
                  "name": "CSAF Tools CVRF-CSAF-Converter 1.0.0-dev1",
                  "product_id": "CSAFPID-0002",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:csaf-tools:cvrf-csaf-converter:1.0.0-dev1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "1.0.0-dev2",
                "product": {
                  "name": "CSAF Tools CVRF-CSAF-Converter 1.0.0-dev2",
                  "product_id": "CSAFPID-0003",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:csaf-tools:cvrf-csaf-converter:1.0.0-dev2"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "1.0.0-dev3",
                "product": {
                  "name": "CSAF Tools CVRF-CSAF-Converter 1.0.0-dev3",
                  "product_id": "CSAFPID-0004",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:csaf-tools:cvrf-csaf-converter:1.0.0-dev3"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "1.0.0-rc1",
                "product": {
                  "name": "CSAF Tools CVRF-CSAF-Converter 1.0.0-rc1",
                  "product_id": "CSAFPID-0005",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:csaf-tools:cvrf-csaf-converter:1.0.0-rc1"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "1.0.0-rc2",
                "product": {
                  "name": "CSAF Tools CVRF-CSAF-Converter 1.0.0-rc2",
                  "product_id": "CSAFPID-0006",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:csaf-tools:cvrf-csaf-converter:1.0.0-rc2"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "CVRF-CSAF-Converter"
          }
        ],
        "category": "vendor",
        "name": "CSAF Tools"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Damian Pfammatter"
          ],
          "organization": "Cyber-Defense Campus",
          "summary": "Finding and reporting the vulnerability"
        }
      ],
      "cve": "CVE-2022-27193",
      "cwe": {
        "id": "CWE-611",
        "name": "Improper Restriction of XML External Entity Reference"
      },
      "ids": [
        {
          "system_name": "Github Issue",
          "text": "csaf-tools/CVRF-CSAF-Converter#78"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "CVRF-CSAF-Converter before 1.0.0-rc2 resolves XML External Entities (XXE). This leads to the inclusion of arbitrary (local) file content into the generated output document. An attacker can exploit this to disclose information from the system running the converter.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "first_fixed": [
          "CSAFPID-0006"
        ],
        "fixed": [
          "CSAFPID-0006"
        ],
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002",
          "CSAFPID-0003",
          "CSAFPID-0004",
          "CSAFPID-0005"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-03-14T13:10:55.000+01:00",
          "details": "Update to the latest version of the product. At least version 1.0.0-rc2",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005"
          ],
          "url": "https://github.com/csaf-tools/CVRF-CSAF-Converter/releases/tag/1.0.0-rc2"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "exploitCodeMaturity": "FUNCTIONAL",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:L/E:F/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0005"
          ]
        }
      ]
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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Detection rules are retrieved from Rulezet.