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TP-Link TL-PS110U / TL-PS110P Cross Site Scripting

TP-Link TL-PS110U / TL-PS110P Cross Site Scripting
Posted Apr 4, 2011
Authored by b0telh0 | Site gotgeek.com.br

TP-Link TL-PS110U and TL-PS110P suffer from a cross site scripting vulnerability.

tags | exploit, xss
MD5 | dcc33c91af35c34313ec6850292cb4f8

TP-Link TL-PS110U / TL-PS110P Cross Site Scripting

Change Mirror Download
GotGeek Labs
http://www.gotgeek.com.br/

TP-Link TL-PS110U & TL-PS110P Cross-site Scripting Vulnerability



[+] Description

TL-PS110U:
The TP-LINK TL-PS110U print server allows you to take the computer out
of the loop while setting up a printing network. All that is needed is to
connect the TL-PS110U to a printer via the USB port, connect the print
server to your LAN, and you will be able to access your printer from any
computer on the LAN.

TL-PS110P:
The TP-LINK TL-PS110P print server allows you to take the computer out
of the loop while setting up a printing network. All that is needed is to
connect the TL-PS110P to a printer via the parallel port, connect the print
server to your LAN, and you will be able to access your printer from any
computer on the LAN.



[+] Information

Title: TP-Link TL-PS110U & TL-PS110P Cross-site Scripting Vulnerability
Shodan Dork: ZOT-PS-47/9.8.0016 -WWW-Authenticate
ZOT-PS-30/8.3.0013 -WWW-Authenticate
Advisory: gg-006-2011
Date: 03-15-2011
Last update: 03-26-2011
Link: http://www.gotgeek.com.br/pocs/gg-006-2011.txt



[+] Vulnerabilities

Stored Cross-site Scripting:
Web interface from TL-PS110U and TL-PS110P Print Servers are affected by stored
cross-site scripting vulnerability because it fails to properly sanitize
user-supplied input at "NDSContext" field in "NetWare NDS Settings" area.
An attacker may leverage this issue to execute arbitrary script code
in the browser of an unsuspecting user in the context of the affected site.

After injecting the XSS code, you need to access Netware status page.


Affected Versions:

TP-Link TL-PS110U Network Print Server
Firmware: 9.08.47T 0016 (ZOT-PS-47/9.8.0016)
9.08.47T 0013 (ZOT-PS-47/9.8.0013)
6.03.35T 0007 (ZOT-PS-47/9.8.0007)
6.03.35T 0006 (ZOT-PS-47/9.8.0006)
6.03.35T 0005 (ZOT-PS-47/9.8.0005)
6.03.35T 0004 (ZOT-PS-47/9.8.0004)

TP-Link TL-PS110P Network Print Server
Firmware: 8.03.30T 0013 (ZOT-PS-30/8.3.0013)
8.03.30T 0009 (ZOT-PS-30/8.3.0009)
8.03.30T 0008 (ZOT-PS-30/8.3.0008)

Other versions may also be vulnerable.



[+] Proof of Concept/Exploit

XSS:
http://target/RESTART.HTM?NDSContext=</script><script>alert("xss")</script><script>

and then..

http://target/NETWARE.HTM



[+] Timeline

24-03-2011: first contact to vendor.
27-03-2011: support contact response, asking more details.
27-03-2011: more information sent.
03-04-2011: no vendor response.
04-04-2011: advisory published.



[+] References

http://www.tp-link.com/products/productDetails.asp?class=&pmodel=TL-PS110U
http://www.tp-link.com/products/productDetails.asp?class=&pmodel=TL-PS110P



[+] Credits

b0telh0

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