CVE-2017-6953 : Security Advisory and Response

Gemalto's SmartDiag Diagnosis Tool version 2.5 is vulnerable to a stack-based Buffer Overflow with SEH Overwrite, potentially allowing local code execution.

Understanding CVE-2017-6953

What is CVE-2017-6953?

CVE-2017-6953 is a vulnerability in Gemalto's SmartDiag Diagnosis Tool version 2.5 that can be exploited through excessively long input fields, specifically in the "Register a new card" feature.

The Impact of CVE-2017-6953

This vulnerability poses a significant risk of executing local code when untrusted input is provided to SmartDiag.exe or SymDiag.exe.

Technical Details of CVE-2017-6953

Vulnerability Description

The vulnerability involves a stack-based Buffer Overflow with SEH Overwrite in Gemalto's SmartDiag Diagnosis Tool version 2.5.

Affected Systems and Versions

Product: Gemalto SmartDiag Diagnosis Tool
Version: 2.5

Exploitation Mechanism

The exploit occurs through the use of excessively long input fields in the "Register a new card" feature.

Mitigation and Prevention

Immediate Steps to Take

Disable or restrict access to the affected feature or tool if possible.
Implement input validation to prevent buffer overflow attacks.
Monitor and restrict untrusted input to mitigate the risk of code execution.

Long-Term Security Practices

Regularly update and patch the Gemalto SmartDiag Diagnosis Tool to the latest version.
Conduct security assessments and penetration testing to identify and address vulnerabilities.
Educate users on safe input practices to prevent buffer overflow exploits.

Patching and Updates

Apply security patches provided by Gemalto to address the vulnerability in SmartDiag Diagnosis Tool version 2.5.