SB2021011913 - Multiple vulnerabilities in cPanel

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Main Vulnerability Database SB2021011913

SB2021011913 - Multiple vulnerabilities in cPanel

Published: January 19, 2021 Updated: February 11, 2021

Security Bulletin ID SB2021011913
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-26266)

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.


2) Improper Enforcement of Behavioral Workflow (CVE-ID: CVE-2021-26267)

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.



Remediation

Install update from vendor's website.

References