CVE-2007-2239 in Camera Control
Summary
by MITRE
Stack-based buffer overflow in the SaveBMP method in the AXIS Camera Control (aka CamImage) ActiveX control before 2.40.0.0 in AxisCamControl.ocx in AXIS 2100, 2110, 2120, 2130 PTZ, 2420, 2420-IR, 2400, 2400+, 2401, 2401+, 2411, and Panorama PTZ allows remote attackers to cause a denial of service (Internet Explorer crash) or execute arbitrary code via a long argument.
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Analysis
by VulDB Data Team • 11/26/2024
The vulnerability identified as CVE-2007-2239 represents a critical stack-based buffer overflow flaw within the AXIS Camera Control ActiveX control component. This vulnerability specifically affects the SaveBMP method in the AxisCamControl.ocx ActiveX control, which is part of the AXIS 2100, 2110, 2120, 2130 PTZ, 2420, 2420-IR, 2400, 2400+, 2401, 2401+, 2411, and Panorama PTZ camera series. The flaw exists in versions prior to 2.40.0.0, making these camera models susceptible to exploitation by remote attackers who can manipulate the argument passed to the SaveBMP method.
The technical implementation of this vulnerability stems from improper input validation within the ActiveX control's SaveBMP method. When a maliciously crafted long argument is passed to this method, the control fails to properly bounds-check the input data before copying it onto the stack. This lack of proper validation creates a condition where the input data can overwrite adjacent stack memory locations, leading to unpredictable behavior. The overflow occurs because the control allocates a fixed-size buffer on the stack and does not verify that the incoming argument length exceeds this predetermined limit, directly violating fundamental secure coding principles.
The operational impact of this vulnerability extends beyond simple denial of service scenarios to encompass potential remote code execution capabilities. Attackers can leverage this buffer overflow to crash Internet Explorer browsers through controlled memory corruption, effectively causing denial of service attacks against targeted systems. More critically, the vulnerability's nature allows for arbitrary code execution, enabling attackers to gain unauthorized control over affected systems. This represents a significant threat to network security as it allows remote attackers to execute malicious payloads without requiring local system access, making it particularly dangerous in enterprise environments where these cameras are often deployed.
From a cybersecurity framework perspective, this vulnerability maps directly to CWE-121, which describes stack-based buffer overflow conditions, and aligns with ATT&CK technique T1059.007 for command and scripting interpreter. The attack surface is particularly concerning given that ActiveX controls are typically executed with elevated privileges in Internet Explorer environments, providing attackers with potential access to system resources. Organizations using these camera models face substantial risk as the vulnerability can be exploited through web-based attacks without requiring physical access to the devices.
Mitigation strategies for this vulnerability require immediate action including the deployment of the vendor-provided patch version 2.40.0.0 or later, which addresses the buffer overflow through proper input validation and bounds checking mechanisms. System administrators should also implement network segmentation to limit access to these camera devices and disable ActiveX controls in browser environments where they are not strictly necessary. Additional protective measures include regular security assessments of networked camera systems, implementation of intrusion detection systems to monitor for exploitation attempts, and maintaining updated vulnerability management processes to ensure timely patch deployment across all affected systems. The vulnerability demonstrates the critical importance of secure coding practices and the necessity of proper input validation in ActiveX controls, particularly those handling user-supplied data in networked environments.