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Check Point Advisories

Linksys ESeries OS Command Injection (CVE-2018-3953; CVE-2018-3954; CVE-2018-3955)

Check Point Reference: CPAI-2018-1073
Date Published: 5 Nov 2018
Severity: High
Last Updated: 13 Jan 2019
Source:
Industry Reference:CVE-2018-3953
CVE-2018-3954
CVE-2018-3955
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Linksys E1200 Firmware Version 2.0.09
Linksys E2500 Firmware Version 3.0.04
Vulnerability Description A command injection vulnerability exists in the Linksys E Series line of routers. An attacker can exploit these bugs by sending an authenticated HTTP request to the network configuration service. An attacker could then gain the ability to arbitrarily execute code on the machine.

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

  1. In the IPS tab, click Protections and find the Linksys ESeries OS Command Injection (CVE-2018-3953) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Application Servers Protection Violation.
Attack Information:  Linksys ESeries OS Command Injection (CVE-2018-3953)

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