CVE-2007-2946 in Leadtools Raster Dialog File Object
Summary
by MITRE
Buffer overflow in a certain ActiveX control in LeadTools Raster Dialog File_D Object (LTRDFD14e.DLL) 14.5.0.44 allows remote attackers to cause a denial of service (Internet Explorer 7 crash) or execute arbitrary code via a long DestinationPath property value.
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Analysis
by VulDB Data Team • 09/18/2024
The vulnerability identified as CVE-2007-2946 represents a critical buffer overflow flaw within the LeadTools Raster Dialog File_D Object ActiveX control component. This specific vulnerability resides in the LTRDFD14e.DLL library version 14.5.0.44 and affects Microsoft Internet Explorer 7 users who have the vulnerable LeadTools software installed. The flaw manifests through improper input validation within the DestinationPath property of the affected ActiveX control, creating a condition where attacker-controlled input can exceed the allocated buffer space. The vulnerability is classified under CWE-121 as a stack-based buffer overflow, which occurs when a program writes data beyond the boundaries of a fixed-length buffer, potentially overwriting adjacent memory locations.
The technical implementation of this vulnerability exploits the insecure handling of user-supplied data within the ActiveX control's DestinationPath parameter. When a maliciously crafted web page loads the vulnerable ActiveX control with an excessively long DestinationPath value, the control fails to properly validate the input length before copying it into a fixed-size buffer. This buffer overflow condition can result in memory corruption that manifests as an application crash or more severely, allows for arbitrary code execution within the context of the user's session. The vulnerability's impact is particularly severe because it leverages the trust model inherent in ActiveX controls, where browser environments automatically load and execute controls without requiring explicit user consent for potentially dangerous operations.
From an operational standpoint, this vulnerability creates a significant risk for enterprise environments where Internet Explorer 7 remains in use and LeadTools software is deployed. The remote exploitation capability means that attackers can deliver malicious payloads through web-based attacks without requiring local system access, making it particularly dangerous in targeted campaigns. The denial of service aspect can be used for availability attacks, while the code execution capability enables full system compromise. This vulnerability aligns with ATT&CK technique T1190 for Exploit Public-Facing Application, specifically targeting web browsers as entry points. Organizations using vulnerable versions of LeadTools must consider the potential for privilege escalation attacks, as successful exploitation could allow attackers to execute malicious code with the privileges of the logged-in user.
Mitigation strategies for CVE-2007-2946 should prioritize immediate software updates from the vendor, as LeadTools has released patches to address this vulnerability. System administrators should implement browser security measures including ActiveX control restrictions, zone-based security settings, and application whitelisting policies to prevent execution of vulnerable components. Network-level protections such as web application firewalls and content filtering can help detect and block malicious payloads targeting this vulnerability. Additionally, user education regarding the dangers of visiting untrusted websites and the importance of keeping software updated remains crucial. Organizations should also consider implementing sandboxing techniques for Internet Explorer and regularly monitoring for exploitation attempts through security information and event management systems. The vulnerability demonstrates the importance of proper input validation and memory safety practices in software development, particularly for components that interact with user-supplied data in web environments.