CVE-2018-3698 in Ready Mode Technology
Summary
by MITRE
Improper file permissions in the installer for the Intel Ready Mode Technology may allow an unprivileged user to potentially gain privileged access via local access.
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Analysis
by VulDB Data Team • 04/12/2020
The vulnerability identified as CVE-2018-3698 resides within the Intel Ready Mode Technology installer component, specifically manifesting as improper file permissions that create a security escalation path for unprivileged users. This issue represents a critical weakness in the software installation process where the installer fails to properly configure file and directory permissions, allowing local users to potentially elevate their privileges through manipulation of installed components. The vulnerability directly impacts the principle of least privilege by creating opportunities for unauthorized access to system resources that should remain restricted to privileged operations.
The technical flaw stems from the installer's failure to implement proper access control mechanisms during the installation of Intel Ready Mode Technology components. When the installer creates files and directories, it does not properly set restrictive permissions that would normally prevent unprivileged users from accessing or modifying sensitive system components. This misconfiguration creates a persistent security gap where local users can exploit the improperly protected files to potentially execute privileged operations or access restricted system functionality. The vulnerability operates at the file system level and represents a classic case of insufficient access control implementation that violates fundamental security principles.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass potential system compromise and unauthorized access to sensitive data. An unprivileged user with local access to a system running the affected Intel Ready Mode Technology installer could leverage this weakness to gain elevated privileges, potentially allowing them to modify system files, install malicious software, or access confidential information. This vulnerability is particularly concerning because it exists within the installation process itself, meaning that any user with local access can exploit it regardless of their initial privilege level, creating a persistent threat vector that remains active until the system is properly patched or the vulnerable installer is removed.
Mitigation strategies for CVE-2018-3698 should focus on immediate remediation through official Intel patches and updates that properly configure file permissions during installation. System administrators should implement comprehensive file permission audits to identify and correct any improperly configured files that may have been created by the vulnerable installer. The mitigation approach aligns with CWE-732 principle of incorrect permission assignment, requiring proper implementation of access controls during software installation. Organizations should also consider implementing additional security controls such as mandatory access controls and privilege separation mechanisms to reduce the impact of such vulnerabilities. The remediation process should include verification that all installed components have appropriate permissions and that no legacy files with incorrect permissions remain on the system, following ATT&CK technique T1068 for privilege escalation through local system exploitation.