CVE-2018-16962 in SecureAnywhere
Summary
by MITRE
Webroot SecureAnywhere before 9.0.8.34 on macOS mishandles access to the driver by a process that lacks root privileges.
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Analysis
by VulDB Data Team • 03/23/2020
The vulnerability identified as CVE-2018-16962 affects Webroot SecureAnywhere versions prior to 9.0.8.34 on macOS operating systems, representing a critical privilege escalation flaw that stems from improper driver access controls. This issue manifests when processes running without root privileges attempt to interact with the kernel driver component of the security software, creating an avenue for unauthorized system access and potential exploitation.
The technical root cause of this vulnerability lies in the improper implementation of access control mechanisms within the Webroot SecureAnywhere driver on macOS platforms. Specifically, the driver fails to properly validate the privileges of processes attempting to communicate with it, allowing non-root processes to potentially invoke driver functions that should be restricted to privileged execution contexts. This misconfiguration creates a privilege boundary violation that directly contravenes the principle of least privilege and operating system security model enforcement.
From an operational perspective, this vulnerability presents significant risks to macOS systems running affected versions of Webroot SecureAnywhere. An attacker with regular user privileges could potentially exploit this flaw to elevate their privileges to root level, gaining complete control over the affected system. The implications extend beyond simple privilege escalation as this could enable full system compromise, data exfiltration, and persistent access. The vulnerability affects the core security architecture of the software, undermining the trust model that users place in security solutions to protect rather than compromise their systems.
The impact of this vulnerability aligns with CWE-276, which addresses improper privileges, and demonstrates characteristics consistent with ATT&CK technique T1068, privilege escalation through kernel exploits. The flaw represents a fundamental breakdown in the security architecture of the endpoint protection software, where the security solution itself becomes a potential attack vector. Organizations using affected versions face the risk of complete system compromise, making this vulnerability particularly concerning for enterprise environments where security software is expected to provide robust protection.
Mitigation strategies for this vulnerability require immediate patching of Webroot SecureAnywhere to version 9.0.8.34 or later, which addresses the driver access control issues. System administrators should also implement additional monitoring for unauthorized driver access attempts and consider temporary removal of the affected software until patches are applied. Network segmentation and privilege management controls can help limit potential damage if exploitation occurs, while regular security audits should verify that all endpoint protection software maintains proper access controls and privilege boundaries. The vulnerability highlights the critical importance of proper kernel driver security implementation and the necessity of thorough privilege validation in security software components.