Check Point Advisories

VIPA Controls WinPLC7 recv Stack-based Buffer Overflow (CVE-2017-5177)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0309
Date Published:	23 Apr 2017
Severity:	High
Last Updated:	Sunday 30 April, 2017
Source:
Industry Reference:	CVE-2017-5177
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	VIPA Controls WinPLC7 5.0.45.5921 and prior
Vulnerability Description	A stack-based buffer overflow exists in VIPA Controls WinPLC7. The vulnerability is due to improper validation of a length field within received TCP packet data before copying the contents to a stack-based buffer. A remote attacker could exploit this vulnerability by sending maliciously crafted TPKT payloads via TCP to the vulnerable application. Successful exploitation could result in denial of service conditions or, in the worst case, arbitrary code execution in the context of the user running the application.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the VIPA Controls WinPLC7 recv Stack-based Buffer Overflow protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Application Servers Protection Violation.
Attack Information: VIPA Controls WinPLC7 recv Stack-based Buffer Overflow