CVE-2007-5602 in Viewer
Summary
by MITRE
Multiple stack-based buffer overflows in SwiftView Viewer before 8.3.5, as used by SwiftView and SwiftSend, allow remote attackers to execute arbitrary code via unspecified vectors to the (1) svocx.ocx ActiveX control or the (2) npsview.dll plugin for Mozilla and Firefox.
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Analysis
by VulDB Data Team • 07/24/2024
The vulnerability identified as CVE-2007-5602 represents a critical security flaw in SwiftView Viewer software versions prior to 8.3.5, affecting both the SwiftView and SwiftSend applications. This issue manifests as multiple stack-based buffer overflows within the software's ActiveX control and browser plugin components, creating significant attack surface for remote code execution. The vulnerability specifically impacts the svocx.ocx ActiveX control and the npsview.dll plugin designed for Mozilla and Firefox browsers, making it particularly dangerous in enterprise environments where these components are commonly deployed. The flaw stems from inadequate input validation and memory management practices within the viewer application's codebase.
The technical nature of this vulnerability falls under CWE-121 Stack-based Buffer Overflow, which occurs when a program writes data beyond the boundaries of a fixed-length stack buffer. Attackers can exploit this weakness by crafting malicious input that exceeds the buffer's allocated size, causing a stack overflow that can overwrite adjacent memory locations including return addresses and function pointers. The vulnerability's remote exploitation capability means attackers can trigger the overflow through network-based attacks without requiring local system access. This makes it particularly dangerous as it can be exploited through web browsers or other network-delivered attack vectors, potentially allowing unauthorized individuals to execute arbitrary code on vulnerable systems.
The operational impact of CVE-2007-5602 extends beyond simple code execution, as it can lead to complete system compromise and unauthorized access to sensitive data. Organizations utilizing SwiftView Viewer in their document processing workflows face significant risk, particularly in environments where the software is deployed with ActiveX controls or browser plugins. The vulnerability's exploitation can result in persistent backdoor access, data exfiltration, and potential lateral movement within network environments. Security teams must consider the broad attack surface this vulnerability creates, as it affects multiple browser platforms and application interfaces. The remote nature of the exploit means that a single compromised system could serve as a launching point for broader network attacks, making it a high-priority remediation target.
Mitigation strategies for this vulnerability must include immediate software updates to version 8.3.5 or later, which contain the necessary patches to address the buffer overflow conditions. Organizations should also implement network segmentation and access controls to limit exposure of vulnerable systems, particularly those running ActiveX controls or browser plugins. Security monitoring should focus on detecting unusual network traffic patterns or unauthorized code execution attempts that may indicate exploitation attempts. Additionally, browser hardening measures including ActiveX control restrictions and plugin management should be implemented to reduce the attack surface. The vulnerability's classification under ATT&CK technique T1059.007 (Command and Scripting Interpreter: JavaScript) and T1059.003 (Command and Scripting Interpreter: Windows Command Shell) indicates that exploitation often involves scripting attacks that could be detected through behavioral analysis and anomaly detection systems. Regular security assessments and vulnerability scanning should be conducted to identify any remaining instances of vulnerable software deployments.