CVE-2023-51746: Stack Overflow Vulnerability within JT2Go and Teamcenter Visualization Software

Overview

In the cybersecurity world, newly discovered vulnerabilities can put numerous systems at risk. One such vulnerability, identified as CVE-2023-51746, affects several versions of the JT2Go and Teamcenter Visualization software. This vulnerability is of significance due to its potential to cause system compromise or data leakage, thus it is crucial for organizations using these applications to understand the risk and take appropriate remediation measures.
The risk lies in a stack overflow vulnerability that occurs during the parsing of maliciously crafted CGM files. This could potentially allow an attacker to execute code within the context of the current process, leading to serious consequences such as system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2023-51746
Severity: High – CVSS Score 7.8
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: System Compromise or Data Leakage

Affected Products

Product | Affected Versions

JT2Go | All versions < V14.3.0.6 Teamcenter Visualization V13.3 | All versions < V13.3.0.13 Teamcenter Visualization V14.1 | All versions < V14.1.0.12 Teamcenter Visualization V14.2 | All versions < V14.2.0.9 Teamcenter Visualization V14.3 | All versions < V14.3.0.6 How the Exploit Works

The exploit takes advantage of a stack overflow vulnerability present in the affected applications while parsing specially crafted CGM files. This means that an attacker can design a CGM file in such a way that it causes the application’s stack buffer to overflow when it is parsed. This overflow can then be used to execute arbitrary code in the context of the current process.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. This pseudo-code represents a malicious payload embedded within a CGM file, which when parsed by the application, causes a stack overflow:

void malicious_function() {
char buffer[10];
for(int i=0; i<100; i++) {
buffer[i] = 'A'; // This line causes stack overflow
}
// Insert malicious code here to be executed after overflow
}

This code attempts to fill a buffer with a size of 10 with 100 characters, causing a stack overflow. The attacker can then use this overflow to execute malicious code.