GSD-2019-9852

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.
Aliases
Aliases
CVE-2019-9852
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{
  "GSD": {
    "alias": "CVE-2019-9852",
    "description": "LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.",
    "id": "GSD-2019-9852",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-9852.html",
      "https://www.debian.org/security/2019/dsa-4501",
      "https://access.redhat.com/errata/RHSA-2020:1598",
      "https://access.redhat.com/errata/RHSA-2020:1151",
      "https://ubuntu.com/security/CVE-2019-9852",
      "https://advisories.mageia.org/CVE-2019-9852.html",
      "https://linux.oracle.com/cve/CVE-2019-9852.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-9852"
      ],
      "details": "LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.",
      "id": "GSD-2019-9852",
      "modified": "2023-12-13T01:23:47.795562Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@documentfoundation.org",
        "DATE_PUBLIC": "2019-08-15T00:00:00.000Z",
        "ID": "CVE-2019-9852",
        "STATE": "PUBLIC",
        "TITLE": "Insufficient URL encoding flaw in allowed script location check"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "LibreOffice",
                    "version": {
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                        {
                          "version_affected": "\u003c",
                          "version_value": "6.2.6"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Document Foundation"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Thanks to Nils Emmerich of ERNW Research GmbH for discovering and reporting this issue"
        }
      ],
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      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "value": "LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6."
          }
        ]
      },
      "generator": {
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      },
      "problemtype": {
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                "value": "CWE-116 Improper Encoding or Escaping of Output"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9852",
            "refsource": "MISC",
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          },
          {
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            "refsource": "BUGTRAQ",
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          },
          {
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            "refsource": "FEDORA",
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          },
          {
            "name": "USN-4102-1",
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            "url": "https://usn.ubuntu.com/4102-1/"
          },
          {
            "name": "openSUSE-SU-2019:2057",
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          }
        ]
      },
      "source": {
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
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            "children": [],
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              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*",
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            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "6.2.6",
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      "cve": {
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-11-03T17:48Z",
      "publishedDate": "2019-08-15T22:15Z"
    }
  }
}



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