CVE-2019-11148 in Remote Displays SDK
Summary
by MITRE
Improper permissions in the installer for Intel(R) Remote Displays SDK before version 2.0.1 R2 may allow an authenticated user to potentially enable escalation of privilege via local access.
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Analysis
by VulDB Data Team • 07/31/2020
The vulnerability identified as CVE-2019-11148 represents a critical permission flaw within the Intel(R) Remote Displays SDK installer component that affects versions prior to 2.0.1 R2. This issue stems from inadequate access control mechanisms during the installation process, creating potential pathways for privilege escalation attacks. The vulnerability specifically targets the installer's file permissions and directory access controls, which are fundamental security elements that should prevent unauthorized modifications to system components. When the installer fails to properly enforce permission settings, it creates opportunities for malicious actors to manipulate the installation environment and subsequently elevate their privileges on the affected system.
The technical root cause of this vulnerability lies in the improper implementation of file and directory permission controls during the software installation process. The installer fails to establish appropriate access controls that would normally restrict write permissions to authorized users only. This flaw allows authenticated users with legitimate access to the system to potentially exploit the installer's permission model and gain elevated privileges. The vulnerability operates under the principle that installation processes should enforce strict access controls to prevent unauthorized modifications, a fundamental security principle that is violated in this case. From a cybersecurity perspective, this represents a classic privilege escalation vector where legitimate user access is leveraged to achieve unauthorized system-level privileges.
The operational impact of CVE-2019-11148 extends beyond simple privilege escalation, as it fundamentally undermines the security posture of systems running vulnerable versions of the Intel Remote Displays SDK. Attackers who can authenticate to the system may exploit this vulnerability to gain administrative privileges, potentially leading to full system compromise. The vulnerability is particularly concerning because it requires only local access and authentication, making it accessible to users who already have legitimate access to the target system. This type of vulnerability aligns with ATT&CK technique T1068, which covers privilege escalation through local system exploitation, and maps to CWE-276, which addresses incorrect permissions for critical resources. The impact is significant as it allows attackers to manipulate system components that are typically protected from unauthorized access.
Mitigation strategies for this vulnerability center on immediate software updates and proper access control enforcement. Organizations should prioritize updating to Intel Remote Displays SDK version 2.0.1 R2 or later, which contains the necessary permission fixes. System administrators should conduct comprehensive audits of existing installations to identify vulnerable systems and implement mandatory update policies. Additionally, organizations should review and strengthen their permission models for installation processes, ensuring that all installer components properly enforce access controls. The remediation process should include verification that all installed components maintain appropriate file and directory permissions, preventing unauthorized modifications. Security teams should also consider implementing monitoring solutions that can detect unauthorized installer activity or permission changes, providing early warning of potential exploitation attempts. This vulnerability highlights the critical importance of proper permission management in software installation processes and demonstrates how seemingly minor access control oversights can lead to significant security implications.