CVE-2021-25631 denylist of executable filename extensions possible to bypass under windows
Attackers can bypass executable extension denylists on Windows to launch malicious files, potentially executing arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-25631?
CVE-2021-25631 is a high-severity vulnerability in Libreoffice Libreoffice, published on 3 May 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-184
Which versions are affected by CVE-2021-25631?
It affects 1 product.
Products include Libreoffice Libreoffice.
How do I fix CVE-2021-25631?
No fix has been published for CVE-2021-25631 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-25631 being exploited?
There is no known exploitation of CVE-2021-25631 in the wild and no public exploit code.
Other vulnerabilities in Libreoffice Libreoffice
Sources
Also known as GHSA-8xj5-7228-hcfg.