CVE-2017-16563 : Security Advisory and Response

Vulnerability in Vonage (Grandstream) HT802 devices allows attackers to manipulate settings through Cross-Site Request Forgery (CSRF).

Understanding CVE-2017-16563

Attackers exploit a CSRF vulnerability in Vonage (Grandstream) HT802 devices to modify settings in the Basic Settings screen.

What is CVE-2017-16563?

This CVE refers to a security flaw in Vonage (Grandstream) HT802 devices that enables attackers to change settings via CSRF, particularly in cgi-bin/update.

The Impact of CVE-2017-16563

Attackers can maliciously alter device configurations without authorization.
Unauthorized changes may lead to service disruptions or unauthorized access.

Technical Details of CVE-2017-16563

The technical aspects of this CVE include:

Vulnerability Description

CSRF vulnerability in Vonage (Grandstream) HT802 devices.

Affected Systems and Versions

Product: Vonage (Grandstream) HT802
Version: Not applicable

Exploitation Mechanism

Attackers exploit CSRF to manipulate settings in the Basic Settings screen.

Mitigation and Prevention

Steps to address CVE-2017-16563:

Immediate Steps to Take

Implement CSRF protection mechanisms.
Regularly monitor device settings for unauthorized changes.

Long-Term Security Practices

Conduct security assessments and penetration testing regularly.
Educate users on CSRF risks and safe browsing practices.

Patching and Updates

Apply security patches provided by the vendor to fix the CSRF vulnerability.