CVE-2021-21306
Marked Regular Expression Denial of Service (DoS) Vulnerability
Description
Marked is an open-source markdown parser and compiler (npm package "marked"). In marked from version 1.1.1 and before version 2.0.0, there is a Regular expression Denial of Service vulnerability. This vulnerability can affect anyone who runs user generated code through marked. This vulnerability is fixed in version 2.0.0.
INFO
Published Date :
Feb. 8, 2021, 10:15 p.m.
Last Modified :
Feb. 11, 2021, 9:53 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-21306 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-2021-21306.
| URL | Resource |
|---|---|
| https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccd | Patch Third Party Advisory |
| https://github.com/markedjs/marked/issues/1927 | Third Party Advisory |
| https://github.com/markedjs/marked/pull/1864 | Patch Third Party Advisory |
| https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96 | Third Party Advisory |
| https://www.npmjs.com/package/marked | Product 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).
List of RegEx DoS (ReDoS) CVEs and resources
security awesome redos regex dos regex-dos pentesting awesome-list regex-security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-21306 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21306 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]
Feb. 11, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccd No Types Assigned https://github.com/markedjs/marked/commit/7293251c438e3ee968970f7609f1a27f9007bccd Patch, Third Party Advisory Changed Reference Type https://github.com/markedjs/marked/issues/1927 No Types Assigned https://github.com/markedjs/marked/issues/1927 Third Party Advisory Changed Reference Type https://github.com/markedjs/marked/pull/1864 No Types Assigned https://github.com/markedjs/marked/pull/1864 Patch, Third Party Advisory Changed Reference Type https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96 No Types Assigned https://github.com/markedjs/marked/security/advisories/GHSA-4r62-v4vq-hr96 Third Party Advisory Changed Reference Type https://www.npmjs.com/package/marked No Types Assigned https://www.npmjs.com/package/marked Product, Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:marked_project:marked:*:*:*:*:*:node.js:*:* versions from (including) 1.1.1 up to (excluding) 2.0.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21306 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-2021-21306
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.22 }} 0.04%
score
0.61284
percentile