CVE-2022-21818 in License System
Summary
by MITRE • 02/15/2022
NVIDIA License System contains a vulnerability in the installation scripts for the DLS virtual appliance, where a user on a network after signing in to the portal can access other users’ credentials, allowing them to gain escalated privileges, resulting in limited impact to both confidentiality and integrity.
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Analysis
by VulDB Data Team • 02/18/2022
The vulnerability identified as CVE-2022-21818 resides within the NVIDIA License System's installation scripts for the DLS virtual appliance, representing a critical access control flaw that undermines the security posture of enterprise license management infrastructure. This vulnerability specifically affects the authentication and authorization mechanisms implemented during the deployment process of NVIDIA's distributed license system, which is designed to manage software licensing across multiple networked environments. The flaw manifests in the improper handling of session management and credential isolation within the portal interface, creating a pathway for privilege escalation through credential exposure.
The technical implementation of this vulnerability stems from inadequate input validation and session state management within the installation scripts that govern how user credentials are processed and stored during the DLS virtual appliance deployment. When users authenticate to the NVIDIA portal to access licensing services, the system fails to properly isolate credential contexts between different users, allowing an authenticated attacker to potentially extract or manipulate session data that should remain private to individual users. This weakness aligns with CWE-285, which addresses improper authorization in software systems, and represents a direct violation of the principle of least privilege that should govern all enterprise software deployments.
The operational impact of this vulnerability extends beyond simple credential exposure to encompass potential privilege escalation scenarios that could compromise the integrity of the entire licensing infrastructure. An attacker exploiting this vulnerability could gain access to other users' administrative credentials, potentially allowing them to modify license configurations, access restricted system components, or manipulate licensing data that could affect software compliance and enterprise security policies. The limited impact to confidentiality and integrity, while seemingly modest, represents a significant risk given that licensing systems often contain sensitive enterprise data and serve as gateways to critical software infrastructure. This vulnerability directly relates to ATT&CK technique T1078 which covers valid accounts and privilege escalation through legitimate credentials.
Mitigation strategies for CVE-2022-21818 should prioritize immediate patching of affected NVIDIA License System installations to address the underlying credential isolation flaw in the DLS virtual appliance installation scripts. Organizations should implement network segmentation to limit access to the licensing portal and virtual appliance interfaces, ensuring that only authorized personnel can access these critical systems. Additional security controls should include enhanced monitoring of authentication events and session management activities to detect potential exploitation attempts. The implementation of multi-factor authentication for portal access and regular security audits of license management systems will help reduce the attack surface. Furthermore, organizations should conduct comprehensive vulnerability assessments to identify other potential credential exposure points within their software licensing infrastructure, as this vulnerability may indicate broader architectural weaknesses in how user sessions and credentials are managed across enterprise systems.