CVE-2024-0133 in Container Toolkit
Summary
by MITRE • 09/26/2024
NVIDIA Container Toolkit 1.16.1 or earlier contains a vulnerability in the default mode of operation allowing a specially crafted container image to create empty files on the host file system. This does not impact use cases where CDI is used. A successful exploit of this vulnerability may lead to data tampering.
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Analysis
by VulDB Data Team • 10/03/2024
The vulnerability identified as CVE-2024-0133 affects the NVIDIA Container Toolkit version 1.16.1 and earlier, representing a critical security flaw in containerized environments that utilize NVIDIA GPU acceleration. This vulnerability resides within the default operational mode of the toolkit and specifically targets the interaction between containerized applications and the underlying host file system. The flaw allows malicious actors to craft specially designed container images that can create empty files on the host system, potentially undermining the security boundaries that separate containerized workloads from the host environment. This issue is particularly concerning in production environments where GPU-accelerated containers are prevalent, as it represents a direct compromise of the isolation mechanisms that container technologies are designed to maintain.
The technical nature of this vulnerability stems from improper handling of file system operations within the NVIDIA Container Toolkit's default configuration. When containers are launched without explicit CDI (Container Device Interface) usage, the toolkit fails to properly sanitize or restrict file creation operations that originate from containerized processes. This misconfiguration allows containerized applications to bypass normal file system access controls and create files directly on the host file system, even when those operations would normally be restricted. The vulnerability operates at the intersection of container orchestration security and GPU virtualization, creating a pathway for privilege escalation and unauthorized file system modifications. According to CWE classification, this represents a weakness in the toolkit's file system access control mechanisms, specifically CWE-276, which deals with improper privileges.
The operational impact of this vulnerability extends beyond simple file creation capabilities, as it enables potential data tampering scenarios that could compromise the integrity of host systems. Attackers could leverage this vulnerability to plant malicious files, modify existing system files, or create backdoor access points on the host system. The implications are particularly severe in multi-tenant environments or cloud deployments where multiple users share the same infrastructure, as a single compromised container could potentially affect the entire host system. This vulnerability directly impacts the principle of least privilege that container security relies upon, allowing containerized processes to perform operations that should be restricted to the host system administrators. The ATT&CK framework categorizes this as a privilege escalation technique under T1068, where adversaries leverage containerization technologies to gain elevated access to host resources.
Mitigation strategies for CVE-2024-0133 primarily focus on immediate version updates to NVIDIA Container Toolkit 1.16.2 or later, which contain the necessary patches to address the file system access control flaw. Organizations should also implement mandatory use of CDI (Container Device Interface) when deploying GPU-accelerated containers, as this configuration mode is not affected by the vulnerability. Additional protective measures include implementing strict container runtime policies that restrict file system mount operations and employing monitoring solutions that can detect unauthorized file creation activities on host systems. Security teams should conduct comprehensive audits of all containerized environments utilizing NVIDIA GPU acceleration to identify and remediate any instances of the vulnerable toolkit versions. Network segmentation and container image scanning processes should be enhanced to prevent the deployment of maliciously crafted container images that could exploit this vulnerability. Regular security assessments of container orchestration platforms and GPU virtualization environments are essential to maintain defense-in-depth strategies against similar vulnerabilities that may emerge in complex containerized infrastructures.