CVE-2007-2567 in Tal Bar Code ActiveX control
Summary
by MITRE
Buffer overflow in the SaveBarCode function in the Taltech Tal Bar Code ActiveX control allows remote attackers to execute arbitrary code via unspecified vectors.
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Analysis
by VulDB Data Team • 10/15/2017
The vulnerability identified as CVE-2007-2567 resides within the Taltech Tal Bar Code ActiveX control, specifically in the SaveBarCode function where a buffer overflow condition occurs. This flaw represents a critical security weakness that enables remote attackers to execute arbitrary code on affected systems. The ActiveX control is designed for barcode generation and manipulation, making it a component frequently used in enterprise environments where barcode functionality is required for inventory management, logistics, and document processing systems.
The technical implementation of the SaveBarCode function fails to properly validate input parameters, leading to a classic buffer overflow scenario where malicious data can overwrite adjacent memory locations. This vulnerability falls under the CWE-121 buffer overflow category, which occurs when data is written beyond the boundaries of a fixed-length buffer. The unspecified vectors mentioned in the description suggest that multiple attack paths may exist, potentially including web-based exploitation through Internet Explorer when the ActiveX control is loaded in browser contexts, or through other applications that invoke the control.
From an operational impact perspective, this vulnerability creates significant risk for organizations running affected systems, as successful exploitation can result in complete system compromise. Attackers can leverage this flaw to execute malicious code with the privileges of the affected user, potentially leading to unauthorized access, data theft, system takeover, or deployment of additional malware. The ActiveX control's integration into business applications means that exploitation could occur through various attack vectors including phishing emails, compromised websites, or malicious documents that trigger the vulnerable function when processed by the browser or application.
The threat landscape surrounding this vulnerability demonstrates the persistent risks associated with ActiveX controls in enterprise environments, particularly those that have not received security updates or patches. Organizations should implement immediate mitigations including disabling the ActiveX control in browser contexts, applying vendor patches if available, and conducting comprehensive vulnerability assessments to identify systems running the affected control. This vulnerability aligns with ATT&CK technique T1195.002 for exploitation through ActiveX controls and represents a common entry point for attackers targeting enterprise networks through browser-based attacks. Network segmentation and application whitelisting can provide additional defense layers to prevent exploitation attempts, while regular security assessments should include identification of legacy ActiveX controls that may pose similar risks. The vulnerability underscores the importance of maintaining up-to-date security practices and the need for organizations to phase out legacy components that present unpatched security risks.