CVE-2022-41301 in Subassembly Composer
Summary
by MITRE • 10/03/2022
A maliciously crafted PKT file when consumed through SubassemblyComposer.exe application could lead to memory corruption vulnerability. This vulnerability in conjunction with other vulnerabilities could lead to code execution in the context of the current process.
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Analysis
by VulDB Data Team • 10/03/2022
The vulnerability identified as CVE-2022-41301 represents a critical memory corruption flaw within the SubassemblyComposer.exe application that processes PKT files. This issue falls under the category of buffer overflow vulnerabilities as defined by CWE-121, where improper handling of maliciously crafted input data can lead to unauthorized memory access patterns. The vulnerability specifically manifests when the application processes specially crafted PKT files that contain malformed structures or excessive data sequences beyond expected boundaries. Attackers can exploit this weakness by preparing malicious PKT files that, when opened or processed by SubassemblyComposer.exe, trigger memory corruption conditions that disrupt normal program execution flow.
The technical implementation of this vulnerability demonstrates a classic case of insufficient input validation and memory management within the application's file parsing routine. When SubassemblyComposer.exe encounters a malformed PKT file, it fails to properly validate the file structure or enforce boundary checks during data parsing operations. This leads to memory corruption that can manifest as stack overflows, heap corruption, or other memory management errors that compromise the application's integrity. The vulnerability is particularly dangerous because it operates at the memory level, where unauthorized data manipulation can result in arbitrary code execution within the context of the currently running process. According to ATT&CK framework technique T1059.007, this represents a code execution vector that can be leveraged for privilege escalation and system compromise.
The operational impact of CVE-2022-41301 extends beyond simple application instability, as it creates a pathway for attackers to execute malicious code with the privileges of the compromised process. This vulnerability is particularly concerning in enterprise environments where the SubassemblyComposer.exe application may run with elevated privileges or have access to sensitive data repositories. The memory corruption can be exploited through various attack vectors including social engineering campaigns that deliver malicious PKT files via email attachments, file sharing platforms, or compromised websites. Once successfully exploited, the vulnerability allows attackers to gain persistent access to systems, potentially leading to data exfiltration, lateral movement, or complete system compromise. The vulnerability's exploitation is further amplified by its potential to be combined with other vulnerabilities, creating multi-stage attack chains that can bypass traditional security controls and detection mechanisms.
Mitigation strategies for CVE-2022-41301 should focus on both immediate defensive measures and long-term architectural improvements. Organizations should implement strict file validation protocols that filter and sanitize all incoming PKT files before processing, utilizing input validation techniques aligned with CWE-20 standards to prevent malformed data from reaching the vulnerable parsing routines. The application should be updated with proper boundary checks and memory management controls that prevent buffer overflows during file processing operations. Network segmentation and access controls should be implemented to limit the potential impact of successful exploitation attempts, while monitoring systems should be deployed to detect anomalous file processing activities. Security patches should be prioritized for the affected SubassemblyComposer.exe application, and organizations should consider implementing application whitelisting policies that restrict execution of unauthorized binaries. Additionally, regular security assessments and penetration testing should be conducted to identify similar vulnerabilities within the application's codebase and ensure comprehensive protection against similar memory corruption threats.