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

Vulnerability from cvelistv5 – Published: 2022-07-25 00:00 – Updated: 2024-08-03 05:03
VLAI
Title
Execution of Untrusted Macros Due to Improper Certificate Validation
Summary
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
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
Document Fdn. CNA
CNA scorecard C 75/100 over 21 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
The Document Foundation LibreOffice Affected: 7.2 , < 7.2.7 (custom)
Affected: 7.3 , < 7.3.1 (custom)
guessed Create a notification for this product.
Credits
OpenSource Security GmbH on behalf of the German Federal Office for Information Security
Show details on NVD website
To clipboard 

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          },
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            "value": "Una vulnerabilidad de Comprobaci\u00f3n Inapropiada de Certificados en LibreOffice en la que la determinaci\u00f3n de si una macro estaba firmada por un autor confiable al comparar \u00fanicamente el n\u00famero de serie y la cadena del emisor del certificado usado con los de un certificado confiable. Esto no es suficiente para verificar que la macro fue realmente firmada con el certificado. Por lo tanto, un adversario podr\u00eda crear un certificado arbitrario con un n\u00famero de serie y una cadena de emisor id\u00e9nticos a los de un certificado confiable, que LibreOffice presentar\u00eda como pertenecientes al autor confiable, lo que podr\u00eda conllevar que el usuario ejecutara c\u00f3digo arbitrario contenido en macros no debidamente confiables. Este problema afecta a: The Document Foundation LibreOffice versiones  7.2 anteriores a 7.2.7; versiones 7.3 anteriores a 7.3.1"
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