Vulnerability identifier: #VU50652

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26267

CWE-ID: CWE-841

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
cPanel
Web applications / Remote management & hosting panels

Vendor: cPanel, Inc

Description

The vulnerability allows a remote attacker to ignore imposed restrictions.

The vulnerability exists due to an error when handling suspensions for MySQL users with old-style password hashes on a MySQL 5.5 system. The suspendacct fails to disable the passwords and the user still has access to the database.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

cPanel: 11.86.0.1 - 11.92.0.8

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External links
http://news.cpanel.com/cpanel-tsr-2021-0001-full-disclosure/

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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.