CVE-2026-78019 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 Inclusion of Functionality from Untrusted Control Sphere vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges, Filesystem access for attacker, and Remote execution.
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Analysis
by VulDB Data Team • 10/09/2026
The Dell Secure Connect Gateway Policy Manager software, specifically versions prior to 5.34.00.16, is susceptible to a critical security flaw classified as an Inclusion of Functionality from Untrusted Control Sphere. This vulnerability arises when the application fails to properly validate inputs or control flow before executing functions that are intended for privileged contexts but can be triggered by lower-privileged entities. The core technical issue lies in the improper segregation of privileges within the administrative interface, allowing a user with minimal access rights to invoke backend operations reserved for system administrators. This architectural weakness effectively bypasses the intended security boundaries, enabling an attacker to manipulate internal processes that should remain inaccessible without elevated credentials.
From an operational perspective, this flaw allows a low-privileged attacker who has obtained remote network access to escalate their privileges significantly. By exploiting the unvalidated function inclusion, the attacker can transition from a standard user account to one with administrative capabilities. This elevation of privilege is particularly dangerous because it grants the adversary full control over the Policy Manager interface and its underlying system components. Once elevated, the attacker gains unrestricted filesystem access, which permits them to read sensitive configuration files, exfiltrate credentials stored in plaintext or weakly encrypted formats, and modify critical policy definitions that govern network security rules.
The impact extends beyond mere data theft to include remote code execution capabilities. With administrative privileges and filesystem write access, an attacker can inject malicious scripts or binaries into the system environment. This allows for the deployment of persistent backdoors, installation of additional malware such as ransomware or cryptominers, and further lateral movement within the protected network segment. The vulnerability fundamentally undermines the integrity of the secure gateway, turning a security appliance into a vector for broader organizational compromise. Attackers can manipulate firewall rules to open ports, disable logging mechanisms to hide their activities, and potentially pivot to other critical infrastructure components connected to the same network zone.
This type of flaw is commonly associated with CWE-94 Improper Control of Generation of Code or Command, specifically involving untrusted input in a context where code execution is possible. In terms of adversary behavior mapping under the MITRE ATT&CK framework, this vulnerability facilitates techniques related to Privilege Escalation and Defense Evasion. The ability to modify system files aligns with persistence mechanisms that allow attackers to maintain access even after initial detection or partial remediation efforts. Furthermore, the exploitation path often involves Initial Access through compromised credentials followed by Lateral Movement if the gateway serves as a bridge between different network segments.
To mitigate this risk, organizations must immediately apply the vendor-provided patch for Dell Secure Connect Gateway Policy Manager version 5.34.00.16 or later. Until patches are applied, it is advisable to restrict network access to the management interface of these devices strictly to trusted administrative subnets using firewall rules and VPNs with strong authentication mechanisms. Implementing multi-factor authentication for all administrative accounts adds a critical layer of defense against credential-based attacks that might precede exploitation of this vulnerability. Additionally, continuous monitoring of system logs for unusual privilege escalation events or unexpected file modifications can help detect potential exploitation attempts in real-time. Regular security audits and penetration testing should be conducted to identify similar architectural flaws where untrusted inputs are not adequately sanitized before being processed by privileged functions.