Twenty Year Anniversary

Handy Password 4.9.3 Buffer Overflow

Handy Password 4.9.3 Buffer Overflow
Posted Jan 11, 2018
Authored by Felipe Xavier Oliveira

Tempest Security Intelligence ADV-12/2018 - A buffer overflow in Handy Password version 4.9.3 allows remote attackers to execute arbitrary code via a long "Title name" field in "mail box" data that is mishandled in an "Open from mail box" action.

tags | advisory, remote, overflow, arbitrary
MD5 | 7353f4100afbf7c53aa46495663168d5

Handy Password 4.9.3 Buffer Overflow

Change Mirror Download
=====[ Tempest Security Intelligence - ADV-12/2018 ]===

Handy Password 4.9.3 Buffer Overflow
-------------------------------------------------------
Author(s):
- Filipe Xavier Oliveira: filipe.xavier () tempest.com.br
- Tempest Security Intelligence - Recife, Pernambuco - Brazil

=====[ Table of Contents ]=====================================================

* Overview
* Detailed description
* Aggravating factors
* Timeline of disclosure
* Thanks & Acknowledgements
* References

=====[ Overview ]==============================================================

* System affected : Handy Password
* Software Version : 4.9.3
Other versions or models may also be affected.
* Impact : A user may be affected by opening a malicious database file, through a long "Title name" or remotely using the "Open from mail box" functionality.

=====[ Detailed description ]==================================================

A buffer overflow in Handy Password 4.9.3 allows remote attackers to execute arbitrary code via a long "Title name" field in "mail box" data that is mishandled in an "Open from mail box" action.
The following information regards the state of the CPU and stack at the moment of the crash:

(488.9b8): Access violation - code c0000005 (!!! second chance !!!)
eax=0014d078 ebx=41414141 ecx=41414141 edx=00000000 esi=0014d078 edi=00000000
eip=773870f4 esp=0014d014 ebp=0014d064 iopl=0 nv up ei pl nz na po nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000202

FAULTING_IP:
unknown!noop+0
41414141 ?? ???
EXCEPTION_RECORD: (.exr -1)
ExceptionAddress: 41414141
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000001
NumberParameters: 1
Parameter[0]: 00000008

=====[ Aggravating factors ]===================================================

It's possible to trigger the buffer overflow remotely if the user open a malicious data base file through the "Open from mail box" function. In this case an attacker can execute arbitrary code remotely.

=====[ Timeline of disclosure ]===============================================

10/19/2017 - Vulnerability reported. Vendor did not respond.
11/06/2017 - Tried to contact vendor again without success.
12/28/2017 - Advisory publication date.
12/28/2017 - CVE assigned [1]

=====[ Thanks & Acknowledgements ]============================================

- Tempest Security Intelligence / Tempest's Pentest Team [2]
- Breno Cunha < brenodario () gmail.com >
- Henrique Arcoverde < henrique.arcoverde () tempest.com.br
- Leandro Rocha <leandro.rocha () tempest.com.br> [3]
- Carlos Cabral <carlos.cabral () tempest.com.br> [3]

=====[ References ]===========================================================

[1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17946
[2] https://www.tempest.com.br
[3] https://sidechannel.tempestsi.com/password-manager-flaw-allows-for-arbitrary-command-execution-b6bb273206b1

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

Want To Donate?


Bitcoin: 18PFeCVLwpmaBuQqd5xAYZ8bZdvbyEWMmU

File Archive:

May 2018

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    15 Files
  • 2
    May 2nd
    17 Files
  • 3
    May 3rd
    30 Files
  • 4
    May 4th
    29 Files
  • 5
    May 5th
    2 Files
  • 6
    May 6th
    3 Files
  • 7
    May 7th
    13 Files
  • 8
    May 8th
    27 Files
  • 9
    May 9th
    17 Files
  • 10
    May 10th
    15 Files
  • 11
    May 11th
    8 Files
  • 12
    May 12th
    2 Files
  • 13
    May 13th
    8 Files
  • 14
    May 14th
    7 Files
  • 15
    May 15th
    43 Files
  • 16
    May 16th
    19 Files
  • 17
    May 17th
    16 Files
  • 18
    May 18th
    15 Files
  • 19
    May 19th
    3 Files
  • 20
    May 20th
    7 Files
  • 21
    May 21st
    15 Files
  • 22
    May 22nd
    40 Files
  • 23
    May 23rd
    64 Files
  • 24
    May 24th
    55 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    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