Check Point Advisories

Juniper Networks ScreenOS Authentication Bypass (CVE-2015-7755)

Check Point Reference: CPAI-2015-1424
Date Published: 21 Dec 2015
Severity: Critical
Last Updated: 1 Feb 2017
Source:
Industry Reference:CVE-2015-7755
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable? Juniper Networks ScreenOS 6.3.0r17 through 6.3.0r20
Vulnerability Description An authentication bypass vulnerability exists in Juniper Networks ScreenOS. The vulnerability is due to the presence of a default administrative account with a hard-coded password. A remote, unauthenticated attacker could exploit this vulnerability to gain administrative access to the target system. This may result in a complete system compromise.

Protection Overview

This protection will detect and block 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 / R76 / R75

  1. In the IPS tab, click Protections and find the Juniper Networks ScreenOS Authentication Bypass protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Juniper Networks ScreenOS Authentication Bypass

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