#VU50364 Improper access control in Channelmgnt - CVE-2020-15251

Vulnerability identifier: #VU50364

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-15251

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Channelmgnt
Web applications / Modules and components for CMS

Vendor: Miraheze Bots

Description

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote user can bypass implemented security restrictions and take over a channel.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Channelmgnt: 1.0.0 - 1.0.2

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External links
https://github.com/MirahezeBots/MirahezeBots/security/advisories/GHSA-23pc-4339-95vg
https://github.com/MirahezeBots/sopel-channelmgnt/pull/3
https://github.com/MirahezeBots/sopel-channelmgnt/security/advisories/GHSA-j257-jfvv-h3x5
https://phab.bots.miraheze.wiki/phame/live/1/post/1/summary/
https://phab.bots.miraheze.wiki/T117
https://pypi.org/project/sopel-plugins.channelmgnt/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.