GSD-2021-25631

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn't match the denylist but results in ShellExecute attempting to launch an executable type.
Aliases
Aliases
CVE-2021-25631
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-25631",
    "description": "In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn\u0027t match the denylist but results in ShellExecute attempting to launch an executable type.",
    "id": "GSD-2021-25631",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-25631.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-25631"
      ],
      "details": "In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn\u0027t match the denylist but results in ShellExecute attempting to launch an executable type.",
      "id": "GSD-2021-25631",
      "modified": "2023-12-13T01:23:20.990235Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@documentfoundation.org",
        "DATE_PUBLIC": "2021-04-15T00:00:00.000Z",
        "ID": "CVE-2021-25631",
        "STATE": "PUBLIC",
        "TITLE": "denylist of executable filename extensions possible to bypass under windows"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "LibreOffice",
                    "version": {
                      "version_data": [
                        {
                          "platform": "Windows",
                          "version_affected": "\u003c",
                          "version_name": "7.1",
                          "version_value": "7.1.2"
                        },
                        {
                          "platform": "Windows",
                          "version_affected": "\u003c",
                          "version_name": "7.0",
                          "version_value": "7.0.5"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "The Document Foundation"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Lukas Euler of Positive Security"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn\u0027t match the denylist but results in ShellExecute attempting to launch an executable type."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-184 Incomplete Denylist"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://positive.security/blog/url-open-rce#open-libreoffice",
            "refsource": "MISC",
            "url": "https://positive.security/blog/url-open-rce#open-libreoffice"
          },
          {
            "name": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/",
            "refsource": "MISC",
            "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/"
          }
        ]
      },
      "source": {
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "7.0.5",
                "versionStartIncluding": "7.0.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "7.1.2",
                "versionStartIncluding": "7.1.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@documentfoundation.org",
          "ID": "CVE-2021-25631"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn\u0027t match the denylist but results in ShellExecute attempting to launch an executable type."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-Other"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/"
            },
            {
              "name": "https://positive.security/blog/url-open-rce#open-libreoffice",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://positive.security/blog/url-open-rce#open-libreoffice"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 9.3,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-05-12T18:58Z",
      "publishedDate": "2021-05-03T12:15Z"
    }
  }
}


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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.