A critical security vulnerability, assigned as CVE-2023-26410, has been identified in Adobe Substance 3D Designer version 12.4. and earlier. This vulnerability is categorized as a Use After Free issue, which could potentially allow an attacker to execute arbitrary code in the context of the current user. To exploit this vulnerability successfully, an attacker must convince the target user to open a maliciously crafted file. This post provides an in-depth analysis of this vulnerability, including code snippets, original references, and exploit details.

Background

Adobe Substance 3D Designer is a powerful application used by 3D artists and designers for creating textures, materials, and other essential assets required for 3D modeling and rendering. Its functionalities offer artists the ability to generate complex designs with incredible precision using a procedural and non-destructive workflow.

Exploit Details

The CVE-2023-26410 vulnerability is a Use After Free issue arising from improperly managed memory within Adobe Substance 3D Designer. When opening a malicious file, the application fails to ensure the integrity of memory objects after their supposed disposal, resulting in the potential for code execution.

The victim opens the file in Adobe Substance 3D Designer version 12.4. or earlier.

4. The vulnerability is triggered, causing the application to execute arbitrary code in the context of the current user.

Code Snippet

Below is a simple yet hypothetical example of how a potential exploit could take place in Adobe Substance 3D Designer:

# Function to initialize a vulnerable object
def init_vulnerable_object():
    # ... other initialization code ...
    # Allocate memory for the vulnerable object
    vulnerable_object = allocate_memory()
    return vulnerable_object

# Function to trigger the Use After Free vulnerability
def trigger_vulnerability(vulnerable_object):
    # ... other code ...
    # Release memory of the vulnerable object
    free_memory(vulnerable_object)
    # ... other code ...
    # Use the released memory (Use After Free issue)
    execute_code(vulnerable_object)

# Main function
def main():
    # Create a vulnerable object
    vulnerable_object = init_vulnerable_object()
    # Trigger the Use After Free vulnerability
    trigger_vulnerability(vulnerable_object)

if __name__ == "__main__":
    main()

Please note that this code snippet is provided for educational purposes only and should not be used to create real-world exploits.

Original References

Adobe issued an official security bulletin, APSB22-05 [https://helpx.adobe.com/security/products/substance3d/apsb22-05.html], that provides necessary information regarding this vulnerability. The advisory suggests updating Adobe Substance 3D Designer to version 12.4.1 or later, which contains a patch to resolve the vulnerability.

MITRE's CVE database also has a dedicated entry for this vulnerability: CVE-2023-26410 [https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-26410].

Conclusion

CVE-2023-26410 is a critical Use After Free vulnerability affecting Adobe Substance 3D Designer 12.4. and earlier versions. Security experts recommend that all users update their software to eliminate this vulnerability and safeguard their systems from potential attacks. Regularly updating software is a crucial practice to ensure that systems remain protected from the latest known vulnerabilities and possible exploits.

Timeline

Published on: 04/13/2023 20:15:00 UTC
Last modified on: 04/14/2023 13:06:00 UTC