Multiple vulnerabilities in cPanel



Published: 2021-01-19 | Updated: 2021-02-11
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-26266
CVE-2021-26267
CWE-ID CWE-264
CWE-841
Exploitation vector Network
Public exploit N/A
Vulnerable software
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cPanel
Web applications / Remote management & hosting panels

Vendor cPanel, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU50650

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-26266

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to way cPanel handles account suspensions. A remote user can trigger a logical error by suspending an already suspended account via the WHM API. As a result, a Reseller can bypass the suspension lock.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

cPanel: 11.86.0.1 - 11.92.0.8


CPE2.3 External links

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

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Improper Enforcement of Behavioral Workflow

EUVDB-ID: #VU50652

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-26267

CWE-ID: CWE-841 - Improper Enforcement of Behavioral Workflow

Exploit availability: No

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


CPE2.3 External links

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

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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