PT-2023-12409 · Unknown · Woorank Robots-Txt-Guard

Published 2023-01-05 · Updated 2024-05-17 · CVE-2021-4305

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Woorank robots-txt-guard (affected versions not specified)

Description A vulnerability was found in 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.

Recommendations Apply a patch to fix this issue, specifically the patch c03827cd2f9933619c23894ce7c98401ea824020. As a temporary workaround, consider restricting the use of the makePathPattern function until a patch is available.

Exploit

Fix

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

CVE-2021-4305

GHSA-6G33-8W2Q-4HXV

Affected Products

Woorank Robots-Txt-Guard

References · 9

• 🔥 https://github.com/Woorank/robots-txt-guard/pull/4 · Exploit
• https://github.com/Woorank/robots-txt-guard/commit/c03827cd2f9933619c23894ce7c98401ea824020 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-4305 · Security Note
• https://osv.dev/vulnerability/CVE-2021-4305 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6g33-8w2q-4hxv · Vendor Advisory
• https://github.com/Woorank/robots-txt-guard · Note
• https://vuldb.com/?id.217448 · Note
• https://t.me/cvenotify/41297 · Telegram Post
• https://vuldb.com/?ctiid.217448 · Note