CVE-2021-25631

denylist of executable filename extensions possible to bypass under windows

State: Published
Severity: Not scored
Published: May 3, 2021
Updated: Sep 16, 2024
Reserved: Jan 19, 2021

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't match the denylist but results in ShellExecute attempting to launch an executable type.

Scores

The record has no CVSS score.

Weaknesses

CWE-184 Incomplete Denylist

Affected Products

Product	Versions
LibreOfficeThe Document Foundation	7.1 to before 7.1.2Affected 7.0 to before 7.0.5Affected

References

https://positive.security/blog/url-open-rce#open-libreoffice
https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/

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