CVE-2026-79689 in Secure Connect Gateway
Summary
by MITRE • 09/09/2026
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to script injection.
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Analysis
by VulDB Data Team • 09/09/2026
The identified security flaw resides within Dell SCG 5.0 Appliance versions prior to build 5.36.00.16 and the corresponding Application versions prior to 5.36.00.00. This vulnerability is classified as an OS Command Injection, which corresponds to Common Weakness Enumeration identifier CWE-78. The core technical issue stems from improper neutralization of special elements used in operating system commands. Specifically, the application fails to adequately sanitize or validate user-supplied input before incorporating it into shell commands executed by the underlying operating system. This lack of rigorous input validation allows malicious actors to inject arbitrary command-line arguments that are then interpreted and executed by the host environment with the privileges granted to the vulnerable service process.
The operational impact of this vulnerability is severe due to its potential for remote exploitation without authentication. An attacker who has network access to the Dell SCG 5.0 interface can craft specific requests containing malicious payloads designed to bypass existing filters or logic checks within the application layer. By exploiting these injection points, an unauthenticated adversary can achieve arbitrary code execution on the affected system. This capability effectively grants the attacker full control over the underlying operating system, depending on the privilege level of the running service. Such access enables a wide range of malicious activities including data exfiltration, lateral movement within the network infrastructure, installation of persistent backdoors, and complete compromise of storage management operations managed by the SCG appliance.
From an offensive security perspective, this vulnerability aligns with MITRE ATT&CK technique T1059 Command and Scripting Interpreter, specifically sub-techniques related to Unix Shell or Windows CMD depending on the underlying OS implementation. The attack vector leverages the application's failure to distinguish between legitimate command parameters and malicious script content, allowing for direct interaction with the host operating system shell. This represents a critical breach in the principle of least privilege if the service is running with elevated permissions, although even standard user privileges can lead to significant data loss or denial of service conditions through destructive commands such as file deletion or resource exhaustion.
Mitigation strategies must prioritize immediate patching and network-level controls. The primary remediation step is to upgrade both the Dell SCG 5.0 Appliance software and the associated Application components to version 5.36.00.16 and later, which contain fixes for this input validation deficiency. In environments where immediate patching is not feasible due to operational constraints or compatibility testing requirements, temporary mitigations should be implemented at the network perimeter. This includes restricting access to the SCG management interface exclusively through trusted IP addresses using firewall rules or virtual private networks. Additionally, deploying a Web Application Firewall with specific rule sets designed to detect and block OS command injection patterns can provide an additional layer of defense by intercepting malicious payloads before they reach the vulnerable application logic. Regular security audits focusing on input validation practices across all administrative interfaces are also recommended to prevent similar weaknesses in other components of the storage infrastructure management suite.