CVE-2020-10117 in cPanel
Summary
by MITRE
cPanel before 84.0.20 mishandles enforcement of demo checks in the Market UAPI namespace (SEC-542).
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Analysis
by VulDB Data Team • 04/17/2024
The vulnerability identified as CVE-2020-10117 affects cPanel versions prior to 84.0.20 and specifically relates to improper enforcement of demo checks within the Market UAPI namespace. This issue represents a critical security flaw that could potentially allow unauthorized access to restricted functionality. The vulnerability stems from insufficient validation mechanisms that should have prevented certain operations from being executed within demo environments. The Market UAPI namespace in cPanel provides application management capabilities including installation, configuration, and management of third-party applications. When demo checks are not properly enforced, this creates a pathway for malicious actors to bypass intended restrictions and access functionality that should only be available in full-featured environments.
The technical flaw manifests in how cPanel handles authentication and authorization checks for Market UAPI operations within demo mode. In demo environments, certain administrative functions are typically restricted to prevent users from making changes that could compromise system integrity or violate licensing terms. The failure to properly validate these demo restrictions means that an attacker could potentially execute Market UAPI calls that would normally be blocked when operating in demo mode. This vulnerability falls under the category of insufficient validation or improper enforcement of security checks, which aligns with CWE-693, which addresses inadequate enforcement of security checks. The flaw essentially creates a condition where the system fails to properly distinguish between demo and production environments, leading to potential privilege escalation or unauthorized access to restricted features.
The operational impact of this vulnerability extends beyond simple access control issues and could enable attackers to gain unauthorized access to application management capabilities. In a typical cPanel environment, the Market UAPI namespace provides access to third-party application installations and configurations that could potentially be exploited for malicious purposes. Attackers could leverage this vulnerability to install unauthorized applications, modify existing configurations, or potentially gain elevated privileges within the system. This represents a significant concern for hosting providers and system administrators who rely on cPanel's security model to protect their infrastructure. The vulnerability could be particularly dangerous in multi-tenant environments where demo accounts are used to showcase functionality to potential customers while maintaining strict security boundaries.
Organizations should implement immediate mitigations to address this vulnerability by upgrading to cPanel version 84.0.20 or later, which contains the necessary patches to properly enforce demo checks. Additionally, system administrators should review their current demo environment configurations to ensure that proper restrictions are in place and monitor for any unusual activity that might indicate exploitation attempts. The remediation process should include comprehensive testing to verify that all Market UAPI operations are properly restricted in demo environments. From a security operations perspective, this vulnerability aligns with ATT&CK technique T1078.004, which covers valid accounts used for lateral movement, as the improper enforcement of demo checks could potentially allow attackers to use legitimate demo accounts to access restricted functionality. Network monitoring should be enhanced to detect any unauthorized Market UAPI calls that might indicate exploitation attempts, and access controls should be reviewed to ensure that only authorized personnel can access the affected functionality. The vulnerability demonstrates the importance of proper security boundary enforcement and highlights the critical need for thorough validation of all security checks within application frameworks.