CVE-2021-4305

Public Exploit
Woorank robots-txt-guard patterns.js makePathPattern redos

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.

Category

3.5
CVSS
Severity: Low
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory vuldb.com Third-Party Advisory vuldb.com
Affected: Woorank robots-txt-guard
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.217448 third party advisory vdb entry technical description
https://vuldb.com/?ctiid.217448 signature third party advisory permissions required
https://github.com/Woorank/robots-txt-guard/pull/4 patch third party advisory issue tracking exploit
https://github.com/Woorank/robots-txt-guard/commit/c03827cd2f9933619c23894ce7c98401ea824020 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-4305?
CVE-2021-4305 has been scored as a low severity vulnerability.
How to fix CVE-2021-4305?
To fix CVE-2021-4305, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4305 being actively exploited in the wild?
It is possible that CVE-2021-4305 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4305?
CVE-2021-4305 affects Woorank robots-txt-guard.
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