CVE-2021-21431
Freenode Sopel Channelmgnt Channel Elevation Vulnerability
Description
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.
INFO
Published Date :
April 9, 2021, 4:15 p.m.
Last Modified :
Nov. 21, 2024, 5:48 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|---|
CVSS 2.0 | MEDIUM | [email protected] | ||||
CVSS 3.1 | HIGH | [email protected] | ||||
CVSS 3.1 | HIGH | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-21431
.
URL | Resource |
---|---|
https://github.com/MirahezeBots/sopel-channelmgnt/commit/7c96d400358221e59135f0a0be0744f3fad73856 | Patch Third Party Advisory |
https://github.com/MirahezeBots/sopel-channelmgnt/security/advisories/GHSA-23c7-6444-399m | Third Party Advisory |
https://pypi.org/project/sopel-plugins.channelmgnt/ | Product Third Party Advisory |
https://github.com/MirahezeBots/sopel-channelmgnt/commit/7c96d400358221e59135f0a0be0744f3fad73856 | Patch Third Party Advisory |
https://github.com/MirahezeBots/sopel-channelmgnt/security/advisories/GHSA-23c7-6444-399m | Third Party Advisory |
https://pypi.org/project/sopel-plugins.channelmgnt/ | Product Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21431
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-21431
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-21431
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21431
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/MirahezeBots/sopel-channelmgnt/commit/7c96d400358221e59135f0a0be0744f3fad73856 Added Reference https://github.com/MirahezeBots/sopel-channelmgnt/security/advisories/GHSA-23c7-6444-399m Added Reference https://pypi.org/project/sopel-plugins.channelmgnt/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Oct. 24, 2022
Action Type Old Value New Value Added CWE NIST NVD-CWE-Other -
Reanalysis by [email protected]
May. 04, 2021
Action Type Old Value New Value Changed Reference Type https://pypi.org/project/sopel-plugins.channelmgnt/ Third Party Advisory https://pypi.org/project/sopel-plugins.channelmgnt/ Product, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:mirahezebots:channelmgnt:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.1 OR *cpe:2.3:a:mirahezebots:channelmgnt:*:*:*:*:*:sopel:*:* versions up to (excluding) 2.0.1 -
CPE Deprecation Remap by [email protected]
May. 04, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mirahezebots:sopel-channelmgnt:*:*:*:*:*:*:*:* versions from (excluding) 2.0.1 OR *cpe:2.3:a:mirahezebots:channelmgnt:*:*:*:*:*:*:*:* versions from (excluding) 2.0.1 -
Initial Analysis by [email protected]
Apr. 20, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:H/A:H Changed Reference Type https://github.com/MirahezeBots/sopel-channelmgnt/commit/7c96d400358221e59135f0a0be0744f3fad73856 No Types Assigned https://github.com/MirahezeBots/sopel-channelmgnt/commit/7c96d400358221e59135f0a0be0744f3fad73856 Patch, Third Party Advisory Changed Reference Type https://github.com/MirahezeBots/sopel-channelmgnt/security/advisories/GHSA-23c7-6444-399m No Types Assigned https://github.com/MirahezeBots/sopel-channelmgnt/security/advisories/GHSA-23c7-6444-399m Third Party Advisory Changed Reference Type https://pypi.org/project/sopel-plugins.channelmgnt/ No Types Assigned https://pypi.org/project/sopel-plugins.channelmgnt/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:mirahezebots:sopel-channelmgnt:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.1 -
CVE Modified by [email protected]
Apr. 12, 2021
Action Type Old Value New Value Removed Reference https://github.com/MirahezeBots/sopel-channelmgnt/commit/643388365f28c5cc682254ab913c401f0e53260a [No Types Assigned] Added Reference https://github.com/MirahezeBots/sopel-channelmgnt/commit/7c96d400358221e59135f0a0be0744f3fad73856 [No Types Assigned]
Vulnerability Scoring Details
Base CVSS Score: 8.1
Base CVSS Score: 5.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} -0.02%
score
0.25329
percentile