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robots-txt-guard Inefficient Regular Expression Complexity vulnerability

High severity GitHub Reviewed Published Jan 5, 2023 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

npm robots-txt-guard (npm)

Affected versions

< 1.0.2

Patched versions

1.0.2

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.

References

Published by the National Vulnerability Database Jan 5, 2023
Published to the GitHub Advisory Database Jan 5, 2023
Reviewed Jan 9, 2023
Last updated Jan 27, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2021-4305

GHSA ID

GHSA-6g33-8w2q-4hxv
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