Description

Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Use of Less Trusted Source vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information tampering.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "3.7",
  "pubDate": "2026-10-09T09:17:08.680Z",
  "pubdate": "2026-10-09T09:17:08.680Z",
  "executiveSummary": "Dell Secure Connect Gateway (SCG) Policy Manager versions prior to 5.34.00.16 are susceptible to an 'Use of Less Trusted Source' vulnerability. This flaw exposes the system to potential information tampering by an unauthenticated, remote attacker.\nThe vulnerability originates from the system's reliance on untrusted or improperly validated data sources during critical processing tasks. By leveraging this oversight, an external threat actor can inject or manipulate data flows without requiring prior authentication, thereby bypassing security controls.\nThe risk implication is significant, as successful exploitation facilitates unauthorized modification of sensitive data within the SCG environment, potentially compromising the integrity of policy configurations and gateway communications. Because the vulnerability is exploitable over a network by unauthenticated actors, the attack surface is broad for any internet-facing or network-exposed SCG instance. Organizations utilizing affected versions are at risk of data corruption, disruption of security policy enforcement, and potential lateral movement or system destabilization depending on the specific nature of the tampered information. Remediation requires an immediate upgrade to the patched version provided by the vendor to ensure data input validation and trust boundary integrity are restored.",
  "technicalDetails": "The vulnerability is classified as an 'Use of Less Trusted Source' flaw, which occurs when an application receives input from an insecure channel or source and processes it as if it were trusted, without performing adequate validation or integrity checks. In the context of Dell Secure Connect Gateway (SCG) Policy Manager, the application fails to verify the provenance of data incoming to the policy management logic, allowing an unauthenticated remote actor to influence or alter internal state information.\nRoot Cause: The Policy Manager component lacks a strict input validation framework or cryptographic signature verification for data inputs originating from external or less-trusted sources. By design, SCG gateways perform automated policy updates and status reporting; the flaw exists where the processing pipeline accepts payloads or communication streams from unauthorized network participants. Because the system treats this remote input as a legitimate source, it processes the manipulated data as valid configuration instructions or telemetry inputs.\nAttack Flow: An attacker initiates a network connection to the target SCG instance. Utilizing the lack of authentication mechanisms for the specific vulnerable endpoint, the attacker transmits a crafted payload designed to mimic legitimate policy updates or system data. Because the Policy Manager does not perform identity verification or integrity validation, it consumes this malicious input. The application then writes the tampered information to its internal configuration database or policy cache. This overwrite results in the modification of operational parameters, potentially causing the gateway to divert traffic, ignore critical security rules, or report false status metrics to administrative dashboards.\nExploitation Method: The exploitation is conducted remotely over the network. The attacker does not require valid credentials (unauthenticated) to access the target interface. By bypassing expected authorization checks, the attacker directly interacts with the Policy Manager's data ingest functionality. The payload behavior involves the substitution of expected legitimate configuration data with actor-controlled values.\nPost-Exploitation Impact: The primary consequence is information tampering. By altering policy definitions, an attacker can effectively disable security controls, facilitate further unauthorized access, or cause operational instability within the gateway. This integrity breach can lead to a state where the gateway can no longer be relied upon for secure connectivity, potentially creating a blind spot in the organization's infrastructure monitoring and security enforcement ecosystem."
}