CVE-2021-25631
LibreOffice Shell Execute Denylist Bypass Vulnerability
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.
INFO
Published Date :
May 3, 2021, 12:15 p.m.
Last Modified :
May 12, 2021, 6:58 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-25631 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-25631.
| URL | Resource |
|---|---|
| https://positive.security/blog/url-open-rce#open-libreoffice | Exploit Third Party Advisory |
| https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
A small collection of File converter vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-25631 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-25631 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
May. 12, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://positive.security/blog/url-open-rce#open-libreoffice No Types Assigned https://positive.security/blog/url-open-rce#open-libreoffice Exploit, Third Party Advisory Changed Reference Type https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/ No Types Assigned https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/ Vendor Advisory Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.5 *cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* versions from (including) 7.1.0 up to (excluding) 7.1.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-25631 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-25631
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.26 }} 0.02%
score
0.66653
percentile