CVE-2021-4305
Woorank robots-txt-guard Regular Expression Complexity Vulnerability
Description
A vulnerability was found in Woorank robots-txt-guard. It has been rated as problematic. Affected by this issue is the function makePathPattern of the file lib/patterns.js. The manipulation of the argument pattern leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. The name of the patch is c03827cd2f9933619c23894ce7c98401ea824020. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-217448.
INFO
Published Date :
Jan. 5, 2023, 11:15 a.m.
Last Modified :
May 17, 2024, 2:03 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2021-4305.
| URL | Resource |
|---|---|
| https://github.com/Woorank/robots-txt-guard/commit/c03827cd2f9933619c23894ce7c98401ea824020 | Patch Third Party Advisory |
| https://github.com/Woorank/robots-txt-guard/pull/4 | Patch Third Party Advisory |
| https://vuldb.com/?ctiid.217448 | Permissions Required Third Party Advisory |
| https://vuldb.com/?id.217448 | 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-2021-4305 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-4305 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.
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CVE Modified by [email protected]
May. 17, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 11, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 21, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 29, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CVSS V3 VulDB AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Added CVSS V3.1 VulDB AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L -
Initial Analysis by [email protected]
Jan. 11, 2023
Action Type Old Value New Value 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/Woorank/robots-txt-guard/commit/c03827cd2f9933619c23894ce7c98401ea824020 No Types Assigned https://github.com/Woorank/robots-txt-guard/commit/c03827cd2f9933619c23894ce7c98401ea824020 Patch, Third Party Advisory Changed Reference Type https://github.com/Woorank/robots-txt-guard/pull/4 No Types Assigned https://github.com/Woorank/robots-txt-guard/pull/4 Patch, Third Party Advisory Changed Reference Type https://vuldb.com/?ctiid.217448 No Types Assigned https://vuldb.com/?ctiid.217448 Permissions Required, Third Party Advisory Changed Reference Type https://vuldb.com/?id.217448 No Types Assigned https://vuldb.com/?id.217448 Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:bridgeline:robots-txt-guard:*:*:*:*:*:*:*:* versions up to (excluding) 2021-02-07
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-4305 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-2021-4305
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.01%
score
0.50387
percentile