Summary
NVIDIA Infrastructure Controller for Linux contains an OS command injection vulnerability that may allow an attacker to cause unauthorized commands to execute in the controller's operating-system context. A successful exploit could result in code execution, data tampering, denial of service, or information disclosure when attacker-controlled input reaches an unsafe command-processing path.
Affected context
The issue occurs in NVIDIA Infrastructure Controller for Linux when externally influenced data is incorporated into an operating-system command without adequate separation between intended arguments and shell or command syntax. Risk depends on whether an attacker can reach the relevant controller functionality, provide or influence processed input, and operate within a context where the resulting command has meaningful permissions.
Exploit preconditions
- Attack surface: A controller function or service path that processes attacker-influenced input
- Required access: The ability to reach that function and supply or modify data consumed by it; the exact access level depends on deployment controls
- Trigger point: Processing of the influenced value by an operating-system command invocation
- Why exploitation is possible: Input is insufficiently separated, constrained, or escaped before being passed to command execution
Why this happens
The underlying bug is OS command injection, mapped to CWE-78. The vulnerable pattern occurs when application data is concatenated into a shell command or otherwise passed to a command interpreter without using safe argument boundaries and strict input constraints. As a result, data intended to be a parameter may be interpreted as additional command syntax.
Potential impact
- An attacker may execute unauthorized code with the controller's privileges.
- System or managed infrastructure data could be modified or tampered with.
- The controller or dependent services could experience denial of service.
- Sensitive information accessible to the controller process could be disclosed.
- A compromised process could provide a foothold for further activity, depending on permissions and network exposure.
General mitigation guidance
Mitigation generally focuses on removing shell interpretation from application
workflows and reducing the trust placed in external input.
Common defensive patterns include:
- Prefer direct process APIs that pass a fixed executable and an argument list rather than invoking a shell.
- Apply strict allowlists, type constraints, length limits, and canonicalization to values that must reach system operations.
- Keep command templates and executable paths fixed in code or protected configuration.
- Avoid constructing commands through string concatenation or interpolation.
- Run controller services with the least privileges required and restrict filesystem, network, and administrative access.
- Use isolation and policy controls to limit the impact of any process-level compromise.
- Treat externally supplied configuration and API data as untrusted until validated.
How teams detect issues like this
- Use static analysis to identify shell invocation APIs, command interpreters, and string concatenation or interpolation near process execution.
- Review code paths that transform API, configuration, or management-plane values into operating-system commands.
- Flag dynamic executable paths, unsanitized arguments, and fallback logic that invokes a shell.
- Monitor process creation from the controller for unexpected executables, argument patterns, or parent-child relationships.
- Enforce code-review and CI policies requiring direct argument-based process APIs and approved input-validation routines.
- Use application security testing to exercise command-processing interfaces with non-destructive boundary and metacharacter cases.
