CVE-2013-10036 in Connection Manager
Summary
by MITRE • 07/31/2025
A stack-based buffer overflow vulnerability exists in Beetel Connection Manager version PCW_BTLINDV1.0.0B04 when parsing the UserName parameter in the NetConfig.ini configuration file. A crafted .ini file containing an overly long UserName value can overwrite the Structured Exception Handler (SEH), leading to arbitrary code execution when the application processes the file.
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Analysis
by VulDB Data Team • 07/31/2025
The vulnerability identified as CVE-2013-10036 represents a critical stack-based buffer overflow in Beetel Connection Manager version PCW_BTLINDV1 0 0B04 that stems from improper input validation during configuration file processing. This flaw specifically affects the parsing of the UserName parameter within the NetConfig ini configuration file, creating a pathway for malicious actors to exploit the application's memory management weaknesses. The vulnerability resides in the application's failure to implement adequate bounds checking when handling user-supplied data, allowing attackers to craft specially formatted ini files that exceed the allocated buffer space.
The technical implementation of this vulnerability involves the manipulation of the Structured Exception Handler chain, which serves as a critical mechanism for error handling in windows applications. When the application processes a maliciously crafted NetConfig ini file containing an excessively long UserName value, the buffer overflow occurs within the stack memory allocation, specifically targeting the SEH frame. This overwrite of the exception handler allows attackers to redirect execution flow to arbitrary code locations, effectively bypassing standard security mechanisms and enabling remote code execution. The vulnerability demonstrates characteristics consistent with CWE-121 Stack-based Buffer Overflow, which occurs when a program writes data beyond the boundaries of a fixed-length stack buffer, and aligns with ATT&CK technique T1059 007 for Command and Scripting Interpreter specifically targeting Windows Command Shell.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass complete system compromise when exploited successfully. An attacker who successfully exploits this vulnerability can execute arbitrary code with the privileges of the Beetel Connection Manager process, which typically runs with elevated permissions due to its role in managing network connections. This presents a significant risk to end-user systems, particularly in enterprise environments where such connection managers might be deployed across multiple devices. The vulnerability is particularly concerning because it requires no user interaction beyond the legitimate use of the application, making it a passive threat that can be exploited through automated means.
Mitigation strategies for CVE-2013-10036 should prioritize immediate patching of the affected Beetel Connection Manager version, as this represents the most effective defense against exploitation. Organizations should implement network segmentation and access controls to limit exposure of systems running vulnerable versions, while also monitoring for suspicious configuration file modifications that might indicate attempted exploitation. Security professionals should consider implementing application whitelisting policies to restrict execution of unauthorized binaries and establish robust configuration management practices to prevent unauthorized modifications to critical ini files. Additionally, regular security assessments should include verification of installed software versions to ensure compliance with vendor security recommendations and prevent similar vulnerabilities from persisting in the environment. The vulnerability serves as a reminder of the importance of input validation and proper memory management in preventing exploitation of buffer overflow conditions that can lead to complete system compromise.