CVE-2023-2331 in SureLock
Summary
by MITRE • 04/27/2023
Unquoted Search Path or Element vulnerability in 42Gears Surelock Windows SureLock Service (NixService.Exe) on Windows allows Privilege Escalation, Local Execution of Code.This issue affects Surelock Windows : 2.40.0.
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Analysis
by VulDB Data Team • 05/21/2023
The vulnerability identified as CVE-2023-2331 represents a critical unquoted search path weakness in the 42Gears Surelock Windows SureLock Service component known as NixService.Exe. This flaw exists within the Windows operating system environment and specifically impacts version 2.40.0 of the Surelock Windows suite. The vulnerability stems from improper handling of executable paths during service initialization, creating a path traversal opportunity that can be exploited by malicious actors to gain elevated privileges. The root cause aligns with CWE-428, which describes unquoted search paths that allow attackers to execute malicious code with higher privileges than intended. This particular implementation vulnerability affects how the service resolves and executes binaries, creating a potential attack vector for privilege escalation.
The technical exploitation of this vulnerability occurs when the SureLock service attempts to locate and execute NixService.Exe without properly quoting the search path. Attackers can place malicious executables in directories that appear earlier in the Windows search path, allowing their code to execute before the legitimate service binary. This behavior enables local code execution and privilege escalation because the service runs with elevated privileges typically reserved for system-level operations. The vulnerability specifically affects the Windows service execution model where path resolution does not properly validate or sanitize the executable locations, creating a predictable execution flow that adversaries can manipulate. This flaw operates at the system level and leverages Windows service architecture weaknesses that have been documented in various security frameworks.
The operational impact of this vulnerability extends beyond simple code execution to encompass complete system compromise capabilities. An attacker with local access can exploit this weakness to execute arbitrary code with the privileges of the running service, which typically operates at system level. The privilege escalation potential means that successful exploitation could lead to full system control, data exfiltration, and persistent access to the compromised machine. Organizations using 42Gears Surelock Windows version 2.40.0 face significant risk as this vulnerability can be exploited without requiring network access or specialized tools beyond basic local system access. The impact aligns with ATT&CK technique T1068, which covers local privilege escalation through service execution flaws, and represents a critical weakness in the service management architecture that organizations must address immediately.
Mitigation strategies for CVE-2023-2331 require immediate attention from system administrators and security teams. The primary remediation involves updating to a patched version of 42Gears Surelock Windows that addresses the unquoted search path vulnerability in NixService.Exe. Organizations should also implement proper path quoting practices during service installation and execution, ensuring that all executable paths are properly enclosed in quotation marks to prevent path traversal attacks. Additionally, security teams should conduct comprehensive audits of service configurations and verify that no malicious executables exist in directories that appear in the Windows search path before legitimate service binaries. The mitigation approach should align with industry best practices for service hardening and privilege management, following standards such as those outlined in NIST SP 800-171 and ISO 27001 security controls. System administrators should also consider implementing application whitelisting policies and monitoring for suspicious service execution patterns to detect potential exploitation attempts.