CVE-2026-78339 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 Incorrect Permission Assignment for Critical Resource vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure, Protection mechanism bypass, and Unauthorized access.
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Analysis
by VulDB Data Team • 10/09/2026
The Dell Secure Connect Gateway Policy Manager, specifically in versions prior to 5.34.00.16, suffers from a critical misconfiguration regarding file system permissions that allows for the improper assignment of rights to sensitive resources within the application environment. This vulnerability stems from an Incorrect Permission Assignment for Critical Resource flaw, where configuration files or executable components necessary for the secure operation of the policy management interface are granted broader access privileges than strictly required by their function. In a properly secured enterprise gateway architecture, these critical resources should be restricted to read-only access for standard service accounts and writable only by privileged administrative processes with strict authentication controls. However, in this affected version, the permission settings inadvertently allow local users with low-privileged credentials to modify or read files that dictate security policies, user roles, and authentication mechanisms. This deviation from the principle of least privilege creates a significant attack surface within the internal network segment where the gateway operates.
From an operational perspective, this vulnerability enables several severe consequences for organizations relying on Dell Secure Connect Gateway for remote access and policy enforcement. A low privileged attacker with local access to the system can exploit these loose permissions to perform information disclosure by reading sensitive configuration data that may contain hardcoded credentials, API keys, or internal network topology details. Furthermore, the attacker can bypass protection mechanisms by altering policy files to disable logging, weaken encryption requirements, or remove restrictions on specific IP addresses and user groups. This effectively neutralizes the security controls intended to protect downstream resources from unauthorized access. The most critical impact is the potential for unauthorized access, as an adversary could modify authentication configurations to create backdoor accounts or escalate privileges by manipulating role-based access control settings, thereby gaining administrative control over the gateway without possessing valid credentials.
This vulnerability aligns closely with CWE-732: Incorrect Permission Assignment for Critical Resource, which describes flaws where software does not properly assign permissions to critical resources such as files and directories. The exploitation path also correlates with MITRE ATT&CK techniques related to Defense Evasion, specifically T1562.001 (Impair Defenses: Disable or Modify Tools), as the attacker modifies security configurations to reduce detection capabilities. Additionally, it relates to T1078 (Valid Accounts) and T1098 (Account Manipulation) if the vulnerability is leveraged to create persistent unauthorized access points within the network infrastructure. The risk is particularly acute in environments where multiple users share system accounts or where local administrative rights are loosely managed, as even a single compromised low-privilege account can serve as an entry point for lateral movement and privilege escalation across the enterprise perimeter.
To mitigate this vulnerability, organizations must immediately upgrade Dell Secure Connect Gateway to version 5.34.00.16 or later, where these permission assignments have been corrected to adhere to strict security baselines. Until the patch is applied, administrators should implement compensating controls by restricting local access to the gateway appliance through physical and network-level segmentation, ensuring that only authorized system administrators can log in locally. It is also advisable to audit file permissions on critical configuration directories manually to ensure they are set to read-only for non-privileged users and owned by root or a dedicated service account with minimal group memberships. Regular vulnerability scanning focused on permission misconfigurations and continuous monitoring of configuration change logs will help detect any attempts to exploit this flaw before it leads to a full compromise of the secure gateway infrastructure.