CVE-2026-78023 in Secure Connect Gateway Policy Manager
Summary
by MITRE • 10/09/2026
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Authorization Bypass Through User-Controlled Key vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.
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Analysis
by VulDB Data Team • 10/09/2026
The Dell Secure Connect Gateway (SCG) Policy Manager software, specifically versions prior to 5.34.00.16, is susceptible to a critical security flaw classified as an Authorization Bypass Through User-Controlled Key vulnerability. This type of weakness typically arises when an application relies on user-supplied data or identifiers to make access control decisions without adequately validating the integrity or authority associated with that key. In this specific instance, the underlying mechanism allows an attacker who possesses low-privileged remote access credentials to manipulate a key parameter within their requests. By altering this controlled input, the attacker can trick the Policy Manager into bypassing standard authorization checks, effectively treating unauthorized actions as legitimate operations performed by higher-level administrators or system services.
From a technical perspective, the vulnerability exploits the failure of the application logic to properly associate user identity with privilege levels during policy enforcement. When an authenticated but low-privileged user interacts with the management interface, the backend processes requests based on keys provided in those interactions. If these keys are not cryptographically bound or strictly validated against the current session's permission scope, a malicious actor can substitute them with values that correspond to administrative privileges. This flaw represents a fundamental breakdown in access control logic, where the system trusts input data over its own internal state regarding user permissions. The absence of robust server-side validation for these keys creates an avenue for privilege escalation, allowing the attacker to execute commands or modify configurations that should be restricted to high-privilege accounts only.
The operational impact of this vulnerability is severe due to the potential for complete compromise of the security infrastructure managed by Dell Secure Connect Gateway. An adversary who successfully exploits this flaw can elevate their privileges from a standard user account to an administrative level. This elevation grants unrestricted access to sensitive network policies, authentication configurations, and potentially other connected systems protected by the gateway. Such unauthorized control enables the attacker to disable security controls, exfiltrate confidential data, install persistent backdoors, or pivot further into the internal network. The ability to bypass authorization checks remotely means that no physical proximity is required, significantly expanding the attack surface for threat actors targeting organizations using this specific version of SCG Policy Manager.
This vulnerability aligns with Common Weakness Enumeration (CWE) ID 284, which describes Improper Access Control, and more specifically CWE 639 regarding Authorization Bypass Through User-Controlled Key. In terms of the MITRE ATT&CK framework, this exploit maps to techniques involving Privilege Escalation on local systems or within application layers, such as T1078 Valid Accounts combined with specific exploitation methods that manipulate session tokens or API keys. The scenario also reflects aspects of CWE 269, Improper Privilege Management, where the system fails to enforce least privilege principles during critical operations.
To mitigate this risk, organizations must immediately upgrade Dell Secure Connect Gateway Policy Manager to version 5.34.00.16 or later, as these updates contain patches that address the flawed authorization logic and ensure proper validation of user-controlled keys. Until patching is complete, administrators should implement strict network segmentation to limit remote access to only essential personnel and enforce multi-factor authentication for all administrative interfaces. Additionally, deploying intrusion detection systems with signatures capable of identifying anomalous API calls or unusual privilege escalation patterns can provide an additional layer of defense against exploitation attempts. Regular auditing of user permissions and review of access logs are also recommended to detect any signs of unauthorized activity resulting from this vulnerability.