CVE-2020-27002 in JT2Go
Summary
by MITRE • 02/10/2021
A vulnerability has been identified in JT2Go (All versions < V13.1.0.1), Teamcenter Visualization (All versions < V13.1.0.1). Affected applications lack proper validation of user-supplied data when parsing of PAR files. This could result in a memory access past the end of an allocated buffer. An attacker could leverage this vulnerability to access data in the context of the current process. (ZDI-CAN-12043)
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Analysis
by VulDB Data Team • 02/26/2021
This vulnerability exists in JT2Go and Teamcenter Visualization software versions prior to V13.1.0.1 where the applications fail to properly validate user-supplied data during PAR file parsing operations. The issue manifests as a buffer overread condition that occurs when the software processes malformed PAR files without adequate input sanitization. The vulnerability is classified as a memory access violation that can lead to information disclosure and potential privilege escalation within the application's execution context. According to CWE-125, this represents an out-of-bounds read vulnerability where the application attempts to access memory beyond the allocated buffer boundaries. The flaw specifically impacts the PAR file parsing module which handles proprietary file formats used for 3d visualization data exchange.
The technical exploitation of this vulnerability requires an attacker to craft a malicious PAR file that triggers the buffer overread condition during parsing. When the application processes such a file, it reads beyond the allocated memory buffer and potentially accesses sensitive data from adjacent memory locations. This could expose confidential information including memory contents, application state data, or even credentials that might be stored in nearby memory segments. The vulnerability does not require authentication to exploit and can be leveraged remotely through file delivery mechanisms. From an attack perspective, this represents a medium to high severity threat as it allows for information disclosure and could potentially lead to further exploitation if sensitive data is accessed. The ATT&CK framework categorizes this under T1059.001 for command and scripting interpreter and T1566.001 for spearphishing attachment.
The operational impact of this vulnerability extends beyond simple information disclosure as it can compromise the integrity of the visualization environment where these applications operate. Organizations using affected versions of JT2Go and Teamcenter Visualization face potential exposure of proprietary design data, engineering specifications, and other sensitive information that might be stored in memory during PAR file processing. The vulnerability affects the core functionality of these applications which are widely used in engineering and manufacturing environments for product visualization and collaboration. System administrators must consider the broader implications of this vulnerability on their security posture, particularly in environments where these applications handle confidential intellectual property or sensitive engineering data. The vulnerability is particularly concerning in supply chain contexts where PAR files might be exchanged between organizations, as malicious actors could embed exploit code within these files to compromise target systems.
Mitigation strategies should focus on immediate version upgrades to V13.1.0.1 or later releases where the parsing validation has been implemented. Organizations should also implement network segmentation and file access controls to limit exposure of these applications to untrusted PAR files. Additional protective measures include deploying intrusion detection systems that can identify suspicious file processing patterns and implementing strict file validation procedures for incoming PAR files. Security monitoring should focus on detecting anomalous memory access patterns or unexpected data reads during PAR file processing operations. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other file parsing components within the visualization ecosystem. The remediation process should also include comprehensive testing of updated applications to ensure that the buffer validation fixes do not introduce regressions in functionality. Organizations should maintain updated threat intelligence feeds to monitor for any exploitation attempts targeting this specific vulnerability.