CVE-2021-23354
Apache printf Regular Expression Denial of Service (ReDoS)
Description
The package printf before 0.6.1 are vulnerable to Regular Expression Denial of Service (ReDoS) via the regex string /\%(?:\(([\w_.]+)\)|([1-9]\d*)\$)?([0 +\-\]*)(\*|\d+)?(\.)?(\*|\d+)?[hlL]?([\%bscdeEfFgGioOuxX])/g in lib/printf.js. The vulnerable regular expression has cubic worst-case time complexity.
INFO
Published Date :
March 12, 2021, 3:15 p.m.
Last Modified :
Aug. 8, 2023, 2:22 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-23354 has a 2 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-2021-23354.
| URL | Resource |
|---|---|
| https://github.com/adaltas/node-printf/issues/31 | Exploit Issue Tracking Third Party Advisory |
| https://github.com/adaltas/node-printf/pull/32 | Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-JS-PRINTF-1072096 | Broken Link |
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
A list of CVE's with Proof of Concepts
JavaScript HTML Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-23354 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-23354 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]
Mar. 18, 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/adaltas/node-printf/issues/31 No Types Assigned https://github.com/adaltas/node-printf/issues/31 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type https://github.com/adaltas/node-printf/pull/32 No Types Assigned https://github.com/adaltas/node-printf/pull/32 Patch, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-JS-PRINTF-1072096 No Types Assigned https://snyk.io/vuln/SNYK-JS-PRINTF-1072096 Broken Link Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:a:adaltas:printf:*:*:*:*:*:node.js:*:* versions up to (excluding) 0.6.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-23354 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-2021-23354
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.20 }} 0.03%
score
0.57258
percentile