CVE-2021-32763
OpenProject Regular Expression Denial of Service (ReDoS)
Description
OpenProject is open-source, web-based project management software. In versions prior to 11.3.3, the `MessagesController` class of OpenProject has a `quote` method that implements the logic behind the Quote button in the discussion forums, and it uses a regex to strip `<pre>` tags from the message being quoted. The `(.|\s)` part can match a space character in two ways, so an unterminated `<pre>` tag containing `n` spaces causes Ruby's regex engine to backtrack to try 2<sup>n</sup> states in the NFA. This will result in a Regular Expression Denial of Service. The issue is fixed in OpenProject 11.3.3. As a workaround, one may install the patch manually.
INFO
Published Date :
July 20, 2021, 5:15 p.m.
Last Modified :
Nov. 21, 2024, 6:07 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.8
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-2021-32763.
| URL | Resource |
|---|---|
| https://github.com/opf/openproject/pull/9447.patch | Patch Third Party Advisory |
| https://github.com/opf/openproject/security/advisories/GHSA-qqvp-j6gm-q56f | Patch Third Party Advisory |
| https://github.com/opf/openproject/pull/9447.patch | Patch Third Party Advisory |
| https://github.com/opf/openproject/security/advisories/GHSA-qqvp-j6gm-q56f | Patch Third Party 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-32763 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32763 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/opf/openproject/pull/9447.patch Added Reference https://github.com/opf/openproject/security/advisories/GHSA-qqvp-j6gm-q56f -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Apr. 25, 2022
Action Type Old Value New Value Removed CWE NIST NVD-CWE-noinfo Added CWE NIST NVD-CWE-Other -
Initial Analysis by [email protected]
Jul. 29, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/opf/openproject/pull/9447.patch No Types Assigned https://github.com/opf/openproject/pull/9447.patch Patch, Third Party Advisory Changed Reference Type https://github.com/opf/openproject/security/advisories/GHSA-qqvp-j6gm-q56f No Types Assigned https://github.com/opf/openproject/security/advisories/GHSA-qqvp-j6gm-q56f Patch, Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:openproject:openproject:*:*:*:*:*:*:*:* versions up to (excluding) 11.3.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32763 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-2021-32763
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.00%
score
0.29696
percentile