Dell SCG Policy Manager Brute Force Authentication Bypass

CVE-2026-76779 exposes a critical weakness in Dell Secure Connect Gateway Policy Manager versions before 5.34.00.16: the absence of proper rate limiting on authentication attempts. This Improper Restriction of Excessive Authentication Attempts vulnerability (CWE-307) allows unauthenticated remote attackers to conduct brute force attacks against user credentials without triggering account lockouts or delays. Organizations deploying SCG Policy Manager for secure remote access and VPN management are directly at risk, as successful exploitation grants attackers initial access to critical gateway infrastructure, enabling privilege escalation and potential lateral movement into protected networks.

While this CVE lacks mapped MITRE ATT&CK techniques, Casky's platform would detect the attack patterns underlying this vulnerability through behavioral analysis. Practitioners would observe reconnaissance activity (T1592: Gather Victim Identity Information) as attackers enumerate valid usernames, followed by brute force attempts (T1110: Brute Force) executing rapid authentication requests without account lockout responses. Casky's extended reasoning engine, analyzing authentication logs and access patterns across the 754 mapped security skills, would flag anomalies such as: failed login attempts from single sources exceeding normal thresholds, absence of exponential backoff delays, and successful authentication following systematic credential attempts. This detection model enables practitioners to identify exploitation attempts in real-time before attackers establish persistence or escalate privileges within the gateway infrastructure.