CVE-2022-40645 in SpaceClaim
Summary
by MITRE • 09/15/2022
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ansys SpaceClaim 2022 R1. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of X_B files. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-17540.
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Analysis
by VulDB Data Team • 09/15/2022
The vulnerability identified as CVE-2022-40645 represents a critical remote code execution flaw in Ansys SpaceClaim 2022 R1 software. This security weakness specifically targets the application's handling of X_B file format parsing operations, creating a pathway for malicious actors to compromise affected systems. The vulnerability's classification as a remote code execution issue indicates that attackers can exploit this flaw without requiring local system access, making it particularly dangerous in enterprise environments where such software may be widely deployed.
The technical root cause of this vulnerability lies in improper pointer initialization within the X_B file parsing component of SpaceClaim. When the application processes maliciously crafted X_B files, the code fails to properly initialize a critical pointer variable before attempting to access its memory location. This classic programming error creates a scenario where the pointer contains unpredictable data, leading to unauthorized memory access patterns. According to CWE standards, this vulnerability maps to CWE-476 which specifically addresses NULL pointer dereference conditions that can result in arbitrary code execution. The flaw demonstrates poor defensive programming practices that have been well-documented in cybersecurity literature as common attack vectors.
The operational impact of this vulnerability extends beyond simple code execution capabilities, as it allows attackers to operate within the security context of the currently running process. This means that successful exploitation could enable threat actors to perform actions such as installing malware, modifying system configurations, accessing sensitive data, or establishing persistent backdoors. The requirement for user interaction through visiting malicious web pages or opening compromised files does not diminish the severity, as social engineering campaigns can effectively target knowledge workers who regularly use CAD software. Attackers can leverage this vulnerability to gain unauthorized access to engineering environments where sensitive intellectual property and design data reside.
Mitigation strategies for CVE-2022-40645 should prioritize immediate software updates from Ansys to address the underlying pointer initialization issue. Organizations should implement network-based controls such as web application firewalls and content filtering to prevent access to known malicious domains hosting exploit payloads. Additionally, security teams should consider deploying endpoint protection solutions with behavioral monitoring capabilities to detect anomalous file processing activities. From an ATT&CK framework perspective, this vulnerability aligns with techniques such as T1203 (Exploitation for Client Execution) and T1059 (Command and Scripting Interpreter) as threat actors would leverage the compromised application to execute malicious code. Regular security assessments and user awareness training should be implemented to reduce the risk of successful exploitation through social engineering vectors. Organizations should also maintain comprehensive incident response procedures specifically addressing potential exploitation of CAD software vulnerabilities to ensure rapid containment and remediation of any successful attacks.