CVE-2021-21431 HIGH

CVE-2021-21431: Improper Input Validation in sopel-plugins.channelmgnt

Vendor Mirahezebots
Product sopel-channelmgnt
Weakness CWE-20 · Input validation
Published April 9, 2021
Last update August 3, 2024
View on NVD All CVEs

CVSS base score

7.6/10
Attack vector Adjacent
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:N/I:H/A:H

What the vulnerability does

01Description

sopel-channelmgnt is a channelmgnt plugin for sopel. In versions prior to 2.0.1, on some IRC servers, restrictions around the removal of the bot using the kick/kickban command could be bypassed when kicking multiple users at once. We also believe it may have been possible to remove users from other channels but due to the wonder that is IRC and following RfCs, We have no POC for that. Freenode is not affected. This is fixed in version 2.0.1. As a workaround, do not use this plugin on networks where TARGMAX > 1.

Key dates

02Disclosure timeline

April 9, 2021 CVE published
August 3, 2024 Record updated