Overview
A critical vulnerability, identified as CVE-2023-51439, has been discovered in multiple software applications including JT2Go and different versions of Teamcenter Visualization. The vulnerability is a result of an out of bounds read past the end of an allocated structure in the affected software, which can be triggered by parsing specially crafted CGM files. This vulnerability is significant as it allows potential attackers to execute arbitrary code in the context of the current process, which could lead to severe consequences such as system compromise or data leakage.
The affected applications are widely used in various industrial sectors, making this vulnerability a serious concern that necessitates immediate attention and mitigation. Any organization or individual using the affected software versions should take swift action to protect their systems and data.
Vulnerability Summary
CVE ID: CVE-2023-51439
Severity: High (CVSS score of 7.8)
Attack Vector: Local file
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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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 vulnerability involves an out of bounds read flaw in the affected software. In this case, the software fails to properly handle the parsing of specially crafted CGM files. This could result in an out of bounds read past the end of an allocated structure.
An attacker with knowledge of this vulnerability could create a specially crafted CGM file, which when processed by the affected software, could cause the application to read beyond the allocated memory. This could potentially allow the attacker to execute arbitrary code in the context of the current process.
Conceptual Example Code
The following is a conceptual representation of an exploit attempt. Please note that this is a simplified representation and actual exploit code would be more complex:
#include <stdio.h>
#include <stdlib.h>
int main() {
char* allocated_memory = (char*)malloc(10*sizeof(char));
FILE* malicious_file = fopen("malicious.cgm", "r");
// force an out of bounds read
fread(allocated_memory, sizeof(char), 20, malicious_file);
// arbitrary code execution
system(allocated_memory);
return 0;
}In this example, a malicious CGM file is read into an allocated memory block. The `fread` function reads more data than the allocated size, causing an out-of-bounds read. The contents of the malicious CGM file could contain a command that is then executed by the `system` function.
