Description

NVIDIA Infrastructure Controller for Linux contains a vulnerability where an attacker could cause an improper authentication issue. A successful exploit of this vulnerability might lead to escalation of privileges, information disclosure, and data tampering.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.2",
  "pubDate": "2026-09-22T15:17:12.543Z",
  "pubdate": "2026-09-22T15:17:12.543Z",
  "executiveSummary": "The NVIDIA Infrastructure Controller for Linux is susceptible to an improper authentication vulnerability that poses a critical risk to system integrity and data confidentiality. This security flaw originates from a failure to correctly validate authentication credentials or tokens during the controller's internal security handshake processes. By successfully exploiting this weakness, an unauthorized actor could bypass established security controls to interact with the controller, effectively assuming higher-privileged execution contexts than those originally granted.\nThe scope of this vulnerability encompasses potential escalation of privileges, unauthorized information disclosure, and illicit data tampering within the controller's management domain. The impact is significant, as the Infrastructure Controller typically governs sensitive hardware and software resources. Exploitation does not require elevated access initially, though it demands specific network reachability to the controller's management interface. Given the potential for complete system compromise and the exposure of sensitive telemetry or configuration data, the risk implication is severe. Security administrators must treat this as a priority concern to prevent unauthorized administrative control over the underlying Linux host or the managed infrastructure components.",
  "technicalDetails": "The vulnerability resides within the authentication logic of the NVIDIA Infrastructure Controller for Linux, which fails to enforce strict, cryptographically sound verification of requester identities. This constitutes an Improper Authentication condition, wherein the system erroneously grants access to an attacker who provides malformed, reused, or unauthenticated requests that the internal state machine incorrectly interprets as valid.\nThe exploitation flow initiates through the attacker establishing a communication channel with the controller's management interface. Because the authentication mechanism fails to perform robust validation of the session state or the integrity of the authentication blob, an attacker can supply crafted input designed to mimic successful authentication headers or bypass the handshake entirely. By exploiting this gap in the authentication routine, the attacker bypasses identity verification protocols, allowing unauthenticated requests to be processed as if they originated from an authorized administrative user or service.\nOnce the initial authentication check is bypassed, the attacker achieves an authenticated state without valid credentials. From this position, the attacker can submit arbitrary commands or configuration requests to the controller. The underlying impact includes the ability to modify system parameters, which facilitates privilege escalation by enabling the manipulation of configuration files or the modification of runtime binaries managed by the controller. Furthermore, the attacker gains the ability to perform read operations on sensitive internal structures, leading to significant information disclosure regarding the system's memory layout, protected configuration settings, or operational secrets.\nThe vulnerability facilitates persistent data tampering, as the attacker can modify the controller's operational logic or intercept and alter data streams traversing the controller. This post-exploitation state often allows for the execution of unauthorized administrative functions, including the potential to manipulate kernel-level drivers or hardware resource allocations managed by the NVIDIA Infrastructure Controller. The lack of cryptographic binding between the session initiation and the subsequent command execution implies that the controller does not maintain sufficient context, making it vulnerable to session-hijacking or injection-based attacks even if partial authentication attempts are initially observed. Given the controller's function, this flaw represents a significant pivot point for lateral movement or deeper systemic compromise within the Linux environment."
}