GotGeek Labs
http://www.gotgeek.com.br/

ZO Tech Multiple Print Servers Cross-site Scripting Vulnerability



[+] Description

(1) PA101 Fast Parallel Port Print Server
(2) PU201 Fast USB Print Server
(3) PA301 Parallel Port Print Server
(4) PS531 USB & Parallel Print Server



[+] Information

Title: ZO Tech Multiple Print Servers Cross-site Scripting Vulnerability
Shodan Dork: ZOT-PS-30/8.3.0016 -WWW-Authenticate
             ZOT-PS-47/9.8.0016 -WWW-Authenticate
             ZOT-PS-34/8.3.0019 -WWW-Authenticate
             ZOT-PS-39/6.3.0007 -WWW-Authenticate
Advisory: gg-009-2011
Date: 03-15-2011
Last update: 03-26-2011
Link: http://www.gotgeek.com.br/pocs/gg-009-2011.txt



[+] Vulnerabilities

Stored Cross-site Scripting:
Web interface from PA101, PU201, PA301 and PS531 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:

ZO Tech PA101 Fast Parallel Port Print Server
Firmware: 8.03.30F 0016 (ZOT-PS-30/8.3.0016)
          8.03.30F 0014 (ZOT-PS-30/8.3.0014)
          8.03.30F 0011 (ZOT-PS-30/8.3.0011)
          8.03.30F 0009 (ZOT-PS-30/8.3.0009)
          8.03.30F 0008 (ZOT-PS-30/8.3.0008)
          8.03.30F 0007 (ZOT-PS-30/8.3.0007)

ZO Tech PU201 Fast USB Print Server
Firmware: 9.08.47F 0016 (ZOT-PS-47/9.8.0016)
          9.08.47F 0015 (ZOT-PS-47/9.8.0015)
          6.03.35F 0008 (ZOT-PS-35/6.3.0008)
          6.03.35F 0006 (ZOT-PS-35/6.3.0006)
          6.03.35F 0004 (ZOT-PS-35/6.3.0004)
          6.03.35F 0003 (ZOT-PS-35/6.3.0003)

ZO Tech PA301 Parallel Port Print Server
Firmware: 8.03.34F 0019 (ZOT-PS-34/8.3.0019)
          8.03.34F 0016 (ZOT-PS-34/8.3.0016)
          8.03.34F 0015 (ZOT-PS-34/8.3.0015)
          8.03.34F 0011 (ZOT-PS-34/8.3.0011)
          8.03.34F 0008 (ZOT-PS-34/8.3.0008)
          8.03.34F 0007 (ZOT-PS-34/8.3.0007)

ZO Tech PS531 USB & Parallel Print Server
Firmware: 6.03.39F 0007 (ZOT-PS-39/6.3.0007)
          6.03.39F 0006 (ZOT-PS-39/6.3.0006)
          6.03.39F 0005 (ZOT-PS-39/6.3.0005)
          6.03.39F 0003 (ZOT-PS-39/6.3.0003)

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.
03-04-2011: no vendor response.
04-04-2011: advisory published.



[+] References

(1)http://www.zot.com.tw/Product/Product_Detail.asp?ProductID=98
(2)http://www.zot.com.tw/Product/Product_Detail.asp?ProductID=99
(3)http://www.zot.com.tw/Product/Product_Detail.asp?ProductID=118
(4)http://www.zot.com.tw/Product/Product_Detail.asp?ProductID=128



[+] Credits

b0telh0