CVE-2007-2787 in Raster Thumbnail Object Library
Summary
by MITRE
Stack-based buffer overflow in the BrowseDir function in the (1) lttmb14E.ocx or (2) LTRTM14e.DLL ActiveX control in LeadTools Raster Thumbnail Object Library 14.5.0.44 allows remote attackers to execute arbitrary code via a long argument.
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Analysis
by VulDB Data Team • 09/16/2024
The vulnerability identified as CVE-2007-2787 represents a critical stack-based buffer overflow affecting LeadTools Raster Thumbnail Object Library version 14.5.0.44. This flaw exists within the BrowseDir function of two specific ActiveX controls namely lttmb14E.ocx and LTRTM14e.DLL which are components of the LeadTools software suite used for image processing and raster graphics manipulation. The vulnerability manifests when these controls process a malformed argument that exceeds the allocated buffer space on the stack, creating conditions that allow attackers to overwrite adjacent memory locations and potentially execute arbitrary code with the privileges of the affected application. This type of vulnerability falls under CWE-121 Stack-based Buffer Overflow which is classified as a fundamental memory safety issue that has been consistently identified as one of the most dangerous classes of software vulnerabilities due to its potential for arbitrary code execution.
The technical implementation of this vulnerability occurs through the manipulation of ActiveX controls that are commonly integrated into web browsers and other applications that support ActiveX technology. When an attacker crafts a specially formatted argument and passes it to the BrowseDir function, the lack of proper bounds checking allows the input data to overflow the designated stack buffer. This overflow can overwrite the return address of the function and potentially other critical stack variables, enabling an attacker to redirect program execution flow to malicious code injected into the stack. The attack vector is particularly concerning because it can be triggered remotely through web content that loads the vulnerable ActiveX controls, making it exploitable in web browser environments where ActiveX controls are enabled. According to ATT&CK framework, this vulnerability maps to T1203 Exploitation for Client Execution which involves leveraging vulnerabilities in client applications to execute malicious code.
The operational impact of this vulnerability extends beyond simple code execution as it represents a significant threat to system security and integrity. An attacker who successfully exploits this vulnerability could gain complete control over the affected system, potentially leading to data theft, system compromise, or the establishment of persistent backdoors. The vulnerability affects systems running the specific version of LeadTools software and any applications that utilize these vulnerable ActiveX controls, making it particularly dangerous in enterprise environments where such software components might be widely deployed. The exploitation requires minimal user interaction since the vulnerability can be triggered through web content, making it a prime target for drive-by download attacks and other automated exploitation techniques. Organizations that have not patched this vulnerability remain at risk of compromise, especially in environments where ActiveX controls are enabled and web browsing is common.
Mitigation strategies for CVE-2007-2787 should focus on immediate remediation through software updates provided by LeadTools to address the buffer overflow in the affected ActiveX controls. System administrators should disable ActiveX controls in web browsers where possible, particularly in environments where they are not essential for business operations. Network segmentation and access controls should be implemented to limit exposure of systems that might be vulnerable, while regular vulnerability assessments should identify other potentially affected software components. The vulnerability also highlights the importance of input validation and bounds checking in software development practices, emphasizing the need for defensive programming techniques that prevent similar issues from occurring in future software releases. Additionally, security monitoring should be enhanced to detect potential exploitation attempts through unusual network traffic patterns or anomalous system behavior that might indicate successful exploitation of this vulnerability.