CVE-2021-21431

published 2021-04-09

CVE-2021-21431: 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…

Priority P3 36 high 8.1 CVSS 3.1

AV N AC L PR H UI R S C C N I H A H

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
mirahezebots	channelmgnt	< 2.0.1	2.0.1
mirahezebots	sopel-channelmgnt	< 2.0.1	2.0.1

CVSS provenance

nvd v3.1 8.1 HIGH CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:H/A:H

nvd v2.0 5.5 MEDIUM AV:N/AC:L/Au:S/C:N/I:P/A:P

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CWE-20 CWE-284