CVE-2022-34366 in SupportAssist for Home PCs
Summary
by MITRE • 02/10/2023
Dell SupportAssist for Home PCs (version 3.11.2 and prior) contain Overly Permissive Cross-domain Whitelist vulnerability. An authenticated non-admin user could potentially exploit the issue and obtain sensitive information.
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Analysis
by VulDB Data Team • 05/05/2026
The vulnerability identified as CVE-2022-34366 affects Dell SupportAssist for Home PCs version 3.11.2 and earlier, representing a critical security flaw in the software's cross-domain security mechanisms. This issue stems from an overly permissive cross-domain whitelist configuration that fails to properly enforce security boundaries between different domains within the application. The vulnerability specifically impacts the application's ability to restrict communication between trusted and untrusted domains, creating potential attack vectors for malicious actors who can leverage this weakness to bypass intended security controls.
The technical implementation of this flaw involves the application's improper handling of cross-domain requests and resource access controls. When an authenticated user accesses the SupportAssist application, the overly permissive whitelist allows certain cross-domain communications that should be restricted based on security policies. This misconfiguration enables an attacker to potentially manipulate domain restrictions and gain unauthorized access to sensitive information that would normally be protected by proper cross-domain security boundaries. The vulnerability operates at the application layer and specifically targets the security controls that govern how different domains within the application can communicate with each other.
The operational impact of this vulnerability is significant for users running affected versions of Dell SupportAssist for Home PCs. An authenticated non-admin user who exploits this vulnerability could potentially access sensitive information that should remain protected within the application's security boundaries. This includes but is not limited to system configuration details, user data, and potentially other sensitive operational information that could be leveraged for further attacks. The fact that this vulnerability can be exploited by non-admin users significantly increases the attack surface and potential impact, as it does not require elevated privileges to exploit.
Organizations and users should immediately update to the latest version of Dell SupportAssist for Home PCs to remediate this vulnerability, as Dell has released patches addressing the overly permissive cross-domain whitelist issue. The mitigation strategy should include implementing proper access controls and regularly updating software components to ensure that security configurations remain current with best practices. Security administrators should also monitor for any unauthorized access attempts or unusual network activity that might indicate exploitation of this vulnerability. Additionally, implementing network segmentation and monitoring controls can help detect and prevent potential exploitation attempts. This vulnerability aligns with CWE-276, which addresses improper permissions and access control issues, and could potentially be leveraged as part of broader attack strategies within the MITRE ATT&CK framework, particularly in the privilege escalation and defense evasion categories.