Vulnerability-Lookup

GHSA-FM9C-XCJ2-2J5G

Vulnerability from github – Published: 2022-07-26 00:01 – Updated: 2022-08-03 00:00

Details

An Improper Certificate Validation vulnerability in LibreOffice existed where determining if a macro was signed by a trusted author was done by only matching the serial number and issuer string of the used certificate with that of a trusted certificate. This is not sufficient to verify that the macro was actually signed with the certificate. An adversary could therefore create an arbitrary certificate with a serial number and an issuer string identical to a trusted certificate which LibreOffice would present as belonging to the trusted author, potentially leading to the user to execute arbitrary code contained in macros improperly trusted. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2022-26305"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-25T15:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "An Improper Certificate Validation vulnerability in LibreOffice existed where determining if a macro was signed by a trusted author was done by only matching the serial number and issuer string of the used certificate with that of a trusted certificate. This is not sufficient to verify that the macro was actually signed with the certificate. An adversary could therefore create an arbitrary certificate with a serial number and an issuer string identical to a trusted certificate which LibreOffice would present as belonging to the trusted author, potentially leading to the user to execute arbitrary code contained in macros improperly trusted. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1.",
  "id": "GHSA-fm9c-xcj2-2j5g",
  "modified": "2022-08-03T00:00:58Z",
  "published": "2022-07-26T00:01:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-26305"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00022.html"
    },
    {
      "type": "WEB",
      "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2022-26305"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-26305 (GCVE-0-2022-26305)

Vulnerability from cvelistv5 – Published: 2022-07-25 00:00 – Updated: 2024-08-03 05:03

Title

Execution of Untrusted Macros Due to Improper Certificate Validation

Summary

Severity

No CVSS data available.

CWE

CWE-295 - Improper Certificate Validation

Assigner

Document Fdn.

References

2 references

URL	Tags
https://www.libreoffice.org/about-us/security/adv…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list

Impacted products

1 product

Vendor	Product	Version
The Document Foundation	LibreOffice	Affected: 7.2 , < 7.2.7 (custom) Affected: 7.3 , < 7.3.1 (custom)

Credits

OpenSource Security GmbH on behalf of the German Federal Office for Information Security

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T05:03:31.146Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2022-26305"
          },
          {
            "name": "[debian-lts-announce] 20230326 [SECURITY] [DLA 3368-1] libreoffice security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00022.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "LibreOffice",
          "vendor": "The Document Foundation",
          "versions": [
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              "lessThan": "7.2.7",
              "status": "affected",
              "version": "7.2",
              "versionType": "custom"
            },
            {
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              "status": "affected",
              "version": "7.3",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "OpenSource Security GmbH on behalf of the German Federal Office for Information Security"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An Improper Certificate Validation vulnerability in LibreOffice existed where determining if a macro was signed by a trusted author was done by only matching the serial number and issuer string of the used certificate with that of a trusted certificate. This is not sufficient to verify that the macro was actually signed with the certificate. An adversary could therefore create an arbitrary certificate with a serial number and an issuer string identical to a trusted certificate which LibreOffice would present as belonging to the trusted author, potentially leading to the user to execute arbitrary code contained in macros improperly trusted. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1."
        }
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      "problemTypes": [
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              "description": "CWE-295 Improper Certificate Validation",
              "lang": "en",
              "type": "CWE"
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        }
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      "providerMetadata": {
        "dateUpdated": "2023-03-26T00:00:00.000Z",
        "orgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
        "shortName": "Document Fdn."
      },
      "references": [
        {
          "url": "https://www.libreoffice.org/about-us/security/advisories/cve-2022-26305"
        },
        {
          "name": "[debian-lts-announce] 20230326 [SECURITY] [DLA 3368-1] libreoffice security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00022.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Execution of Untrusted Macros Due to Improper Certificate Validation",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
    "assignerShortName": "Document Fdn.",
    "cveId": "CVE-2022-26305",
    "datePublished": "2022-07-25T00:00:00.000Z",
    "dateReserved": "2022-02-28T00:00:00.000Z",
    "dateUpdated": "2024-08-03T05:03:31.146Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.