what you don't know can hurt you

Aastra IP Telephone Hardcoded Password

Aastra IP Telephone Hardcoded Password
Posted Apr 8, 2013
Authored by Timo Juhani Lindfors

The Aastra 6753i IP Telephone suffers from a hardcoded telnetd administrative password.

tags | exploit, telephony
MD5 | 151959a878d2b47ee4b38629e61c9a34

Aastra IP Telephone Hardcoded Password

Change Mirror Download

Aastra IP Telephone hardcoded telnet admin password
---------------------------------------------------

Affected products
=================

Aastra 6753i IP Telephone
Firmware Version 3.2.2.56
Firmware Release Code SIP
Boot Version 2.5.2.1010

Background
==========

"The 6753i from Aastra offers powerful features and flexibility in a
standards based, carrier-grade basic level IP telephone. With a
sleek and elegant design and 3 line LCD display, the 6753i is fully
interoperable with leading IP Telephony platforms, offering
advanced XML capability to access custom applications and support
for up to 9 calls simultaneously. Part of the Aastra family of IP
telephones, the 6753i is ideally suited for light to regular
telephone requirements."

Description
===========

The phone seems to ship with a hardcoded telnet password for the "admin"
user. Since the hashing algorithm is weak anybody can find working
passwords using the "vxworks_mem_search.rb" tool in a few seconds. One
of them is "[M]qozn~". After logging in you get access to a VxWorks
shell but for some reason most commands seem to crash the system. This
might mean that the vulnerability can only be used to cause denial of
service but there is no guarantee.

Timeline
========

2012-04-03 Contacted Aastra and explained the issue
2012-04-25 Contacted Aastra and informed them that details will be
disclosed in 2013
2013-04-05 Public disclosure

Comments (1)

RSS Feed Subscribe to this comment feed
cedricbaillet

i've develop a small tool to scan networks and identified vulnerable IP Phones in order to implement workaround or patches.Here is the url for those who could use it also:
www.cedric-baillet.fr/spip.php?article100

Comment by cedricbaillet
2013-04-13 21:16:57 UTC | Permalink | Reply
Login or Register to post a comment

File Archive:

September 2019

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

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close