CVE-2017-6871 Explained : Impact and Mitigation

Siemens SIMATIC WinCC Sm@rtClient for Android and SIMATIC WinCC Sm@rtClient Lite for Android versions prior to V1.0.2.2 are affected by a security flaw that allows unauthorized access under specific conditions.

Understanding CVE-2017-6871

This CVE involves an authentication bypass vulnerability in Siemens SIMATIC WinCC Sm@rtClient for Android and SIMATIC WinCC Sm@rtClient Lite for Android.

What is CVE-2017-6871?

The vulnerability in these Siemens applications allows an attacker with physical access to a mobile device running the vulnerable app to bypass the authentication process.

The Impact of CVE-2017-6871

If exploited, unauthorized individuals could gain access to the app without proper authentication, compromising sensitive data and system security.

Technical Details of CVE-2017-6871

Siemens SIMATIC WinCC Sm@rtClient for Android and SIMATIC WinCC Sm@rtClient Lite for Android are susceptible to an authentication bypass vulnerability.

Vulnerability Description

The flaw enables attackers to bypass the authentication mechanism on unlocked mobile devices running the affected applications.

Affected Systems and Versions

Product: SIMATIC WinCC Sm@rtClient for Android, SIMATIC WinCC Sm@rtClient Lite for Android
Versions: All versions before V1.0.2.2

Exploitation Mechanism

Attackers need physical access to unlocked devices with the vulnerable app to exploit the authentication bypass under specific circumstances.

Mitigation and Prevention

To address CVE-2017-6871, follow these security measures:

Immediate Steps to Take

Update affected applications to version V1.0.2.2 or later.
Avoid leaving mobile devices unlocked and unattended.
Implement strong device authentication methods.

Long-Term Security Practices

Regularly monitor and update mobile applications for security patches.
Educate users on secure mobile device practices to prevent unauthorized access.

Patching and Updates

Siemens may release security advisories and patches to address the vulnerability. Stay informed and apply updates promptly.