CVE-2021-25633
Vulnerability from cvelistv5
Published
2021-10-11 16:43
Modified
2024-09-16 18:28
Severity ?
Summary
LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to combine multiple certificate data, which when opened caused LibreOffice to display a validly signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.
Impacted products
Vendor Product Version
The Document Foundation LibreOffice Version: 7-0   < 7.0.6
Version: 7-1   < 7.1.2
Create a notification for this product.
Show details on NVD website


{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-03T20:11:27.676Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633",
               },
               {
                  name: "DSA-4988",
                  tags: [
                     "vendor-advisory",
                     "x_refsource_DEBIAN",
                     "x_transferred",
                  ],
                  url: "https://www.debian.org/security/2021/dsa-4988",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "LibreOffice",
               vendor: "The Document Foundation",
               versions: [
                  {
                     lessThan: "7.0.6",
                     status: "affected",
                     version: "7-0",
                     versionType: "custom",
                  },
                  {
                     lessThan: "7.1.2",
                     status: "affected",
                     version: "7-1",
                     versionType: "custom",
                  },
               ],
            },
         ],
         credits: [
            {
               lang: "en",
               value: "NDS of Ruhr University Bochum",
            },
         ],
         datePublic: "2021-10-11T00:00:00",
         descriptions: [
            {
               lang: "en",
               value: "LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to combine multiple certificate data, which when opened caused LibreOffice to display a validly signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.",
            },
         ],
         problemTypes: [
            {
               descriptions: [
                  {
                     cweId: "CWE-295",
                     description: "CWE-295 Improper Certificate Validation",
                     lang: "en",
                     type: "CWE",
                  },
               ],
            },
         ],
         providerMetadata: {
            dateUpdated: "2021-10-17T10:06:21",
            orgId: "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
            shortName: "Document Fdn.",
         },
         references: [
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633",
            },
            {
               name: "DSA-4988",
               tags: [
                  "vendor-advisory",
                  "x_refsource_DEBIAN",
               ],
               url: "https://www.debian.org/security/2021/dsa-4988",
            },
         ],
         solutions: [
            {
               lang: "en",
               value: "Update to 7.0.6 or 7.1.2 or 7.2.0",
            },
         ],
         source: {
            discovery: "EXTERNAL",
         },
         title: "Content Manipulation with Double Certificate Attack",
         x_generator: {
            engine: "Vulnogram 0.0.9",
         },
         x_legacyV4Record: {
            CVE_data_meta: {
               ASSIGNER: "security@documentfoundation.org",
               DATE_PUBLIC: "2021-10-11T00:00:00.000Z",
               ID: "CVE-2021-25633",
               STATE: "PUBLIC",
               TITLE: "Content Manipulation with Double Certificate Attack",
            },
            affects: {
               vendor: {
                  vendor_data: [
                     {
                        product: {
                           product_data: [
                              {
                                 product_name: "LibreOffice",
                                 version: {
                                    version_data: [
                                       {
                                          version_affected: "<",
                                          version_name: "7-0",
                                          version_value: "7.0.6",
                                       },
                                       {
                                          version_affected: "<",
                                          version_name: "7-1",
                                          version_value: "7.1.2",
                                       },
                                    ],
                                 },
                              },
                           ],
                        },
                        vendor_name: "The Document Foundation",
                     },
                  ],
               },
            },
            credit: [
               {
                  lang: "eng",
                  value: "NDS of Ruhr University Bochum",
               },
            ],
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "eng",
                     value: "LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to combine multiple certificate data, which when opened caused LibreOffice to display a validly signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.",
                  },
               ],
            },
            generator: {
               engine: "Vulnogram 0.0.9",
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "eng",
                           value: "CWE-295 Improper Certificate Validation",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633",
                     refsource: "MISC",
                     url: "https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633",
                  },
                  {
                     name: "DSA-4988",
                     refsource: "DEBIAN",
                     url: "https://www.debian.org/security/2021/dsa-4988",
                  },
               ],
            },
            solution: [
               {
                  lang: "en",
                  value: "Update to 7.0.6 or 7.1.2 or 7.2.0",
               },
            ],
            source: {
               discovery: "EXTERNAL",
            },
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
      assignerShortName: "Document Fdn.",
      cveId: "CVE-2021-25633",
      datePublished: "2021-10-11T16:43:34.400173Z",
      dateReserved: "2021-01-19T00:00:00",
      dateUpdated: "2024-09-16T18:28:34.730Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2021-25633\",\"sourceIdentifier\":\"security@documentfoundation.org\",\"published\":\"2021-10-11T17:15:07.590\",\"lastModified\":\"2024-11-21T05:55:11.100\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to combine multiple certificate data, which when opened caused LibreOffice to display a validly signed indicator but whose content was unrelated to the signature shown. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.\"},{\"lang\":\"es\",\"value\":\"LibreOffice soporta firmas digitales de documentos ODF y macros dentro de documentos, presentando ayudas visuales de que no se ha producido ninguna alteración del documento desde la última firma y que la firma es válida. Una vulnerabilidad de Comprobación Inapropiada de Certificados en LibreOffice permitía a un atacante crear un documento ODF firmado digitalmente, al manipular el flujo documentsignatures.xml o macrosignatures.xml dentro del documento para combinar múltiples datos de certificados, que cuando se abría causaba que LibreOffice mostrara un indicador firmado válidamente pero cuyo contenido no estaba relacionado con la firma mostrada. Este problema afecta a: versiones de LibreOffice 7-0 de The Document Foundation anteriores a la 7.0.6; versiones 7-1 anteriores a 7.1.2\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:P/A:N\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@documentfoundation.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.0.0\",\"versionEndExcluding\":\"7.0.6\",\"matchCriteriaId\":\"7CF22E51-8E68-4B58-8AB3-D326C1097E3E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.1.0\",\"versionEndExcluding\":\"7.1.2\",\"matchCriteriaId\":\"BA884385-2527-4F68-9FD5-67ECD9A89F42\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]}],\"references\":[{\"url\":\"https://www.debian.org/security/2021/dsa-4988\",\"source\":\"security@documentfoundation.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633\",\"source\":\"security@documentfoundation.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.debian.org/security/2021/dsa-4988\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.