CVE-2012-0267 in NTR ActiveX control
Summary
by MITRE
The StopModule method in the NTR ActiveX control before 2.0.4.8 allows remote attackers to execute arbitrary code via a crafted lModule parameter that triggers use of an arbitrary memory address as a function pointer.
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Analysis
by VulDB Data Team • 09/08/2025
The vulnerability identified as CVE-2012-0267 affects the NTR ActiveX control version 2.0.4.7 and earlier, representing a critical buffer overflow condition that enables remote code execution through improper input validation. This flaw exists within the StopModule method of the ActiveX control which fails to properly validate the lModule parameter, allowing attackers to manipulate memory addresses and execute arbitrary code on vulnerable systems. The vulnerability stems from insufficient bounds checking and parameter validation mechanisms within the control's implementation, creating a pathway for malicious actors to leverage memory corruption techniques.
The technical exploitation of this vulnerability involves crafting a malicious lModule parameter that forces the ActiveX control to treat an arbitrary memory address as a function pointer, effectively bypassing normal execution flow and enabling arbitrary code execution. This type of vulnerability falls under CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write operations, as the control fails to validate memory access boundaries. The attack vector requires a user to interact with a malicious webpage or file containing the crafted ActiveX control, making it particularly dangerous in web-based attack scenarios where users may unknowingly trigger the exploit through routine browsing activities.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with full control over affected systems. Once exploited, adversaries can install malware, modify system configurations, steal sensitive data, or establish persistent backdoors within the compromised environment. The vulnerability affects systems running Windows operating systems where the NTR ActiveX control is installed, particularly those that do not properly restrict ActiveX control loading or have outdated security policies. The risk is compounded by the fact that ActiveX controls often run with elevated privileges, potentially allowing attackers to bypass standard user access controls and system protections.
Mitigation strategies for CVE-2012-0267 require immediate action including updating the NTR ActiveX control to version 2.0.4.8 or later, which contains the necessary patches to address the memory validation issues. Organizations should also implement ActiveX control restrictions through group policy settings, disable ActiveX controls in web browsers when not required, and employ application whitelisting solutions to prevent unauthorized ActiveX control execution. The vulnerability aligns with ATT&CK technique T1170, which covers the use of application sandboxing bypass techniques, and represents a common vector for initial access in enterprise environments where ActiveX controls are still deployed. Regular security assessments and vulnerability scanning should be conducted to identify any remaining instances of the vulnerable ActiveX control within the organization's infrastructure, ensuring comprehensive protection against similar memory corruption vulnerabilities.