CVE-2021-32723
Prism Regular Expression Denial of Service (ReDoS) Vulnerability
Description
Prism is a syntax highlighting library. Some languages before 1.24.0 are vulnerable to Regular Expression Denial of Service (ReDoS). When Prism is used to highlight untrusted (user-given) text, an attacker can craft a string that will take a very very long time to highlight. This problem has been fixed in Prism v1.24. As a workaround, do not use ASCIIDoc or ERB to highlight untrusted text. Other languages are not affected and can be used to highlight untrusted text.
INFO
Published Date :
June 28, 2021, 8:15 p.m.
Last Modified :
March 28, 2022, 4:16 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
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-2021-32723.
| URL | Resource |
|---|---|
| https://github.com/PrismJS/prism/pull/2688 | Patch Third Party Advisory |
| https://github.com/PrismJS/prism/pull/2774 | Patch Third Party Advisory |
| https://github.com/PrismJS/prism/security/advisories/GHSA-gj77-59wh-66hg | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujan2022.html | 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-2021-32723 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32723 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 -
Modified Analysis by [email protected]
Mar. 28, 2022
Action Type Old Value New Value Changed Reference Type https://www.oracle.com/security-alerts/cpujan2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:* versions up to (excluding) 21.1.4 -
CVE Modified by [email protected]
Feb. 07, 2022
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpujan2022.html [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 02, 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:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/PrismJS/prism/pull/2688 No Types Assigned https://github.com/PrismJS/prism/pull/2688 Patch, Third Party Advisory Changed Reference Type https://github.com/PrismJS/prism/pull/2774 No Types Assigned https://github.com/PrismJS/prism/pull/2774 Patch, Third Party Advisory Changed Reference Type https://github.com/PrismJS/prism/security/advisories/GHSA-gj77-59wh-66hg No Types Assigned https://github.com/PrismJS/prism/security/advisories/GHSA-gj77-59wh-66hg Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:prismjs:prism:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.24.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32723 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-2021-32723
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.01%
score
0.45055
percentile