Check Point Advisories

GNU Wget fd_read_body Heap Buffer Overflow (CVE-2017-13090)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-1000
Date Published:	16 Nov 2017
Severity:	Medium
Last Updated:	Tuesday 26 December, 2017
Source:	GNU
Industry Reference:	CVE-2017-13090
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	GNU wget prior to 1.19.2
Vulnerability Description	A heap buffer overflow vulnerability exists in Wget. The vulnerability is due to improper handling of HTTP responses with chunked transfer encoding within the fd_read_body() function. A remote, unauthenticated attacker could exploit this vulnerability by enticing a user to make an HTTP request to the affected 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 GNU Wget fd_read_body Heap 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: Web Client Enforcement Violation.
Attack Information: GNU Wget fd_read_body Heap Buffer Overflow