📚 OpenRCE is preserved as a read-only archive. Launched at RECon Montreal in 2005. Registration and posting are disabled.








Flag: Tornado! Hurricane!

 Forums >>  Brainstorms - General  >>  Exploiting flash player null pointer dereference

Topic created on: June 4, 2009 14:52 CDT by simkinrce .

I think I have found what looks like a null pointer dereference in flash. I think the best way to exploit this, or at least the standard known one Is using heap spraying but the problem is that I don't even know how to start reversing the bug. The problem is that it's a vm and I don't know how to extract meaningfull information such as a trace of actionscript function calls or whatever, Does someone know some tool to reverse/debug swf's?, As far as i know the flash debugger doesn't debug compiled swf's, only .fla's or some kind of mix between them, but obviously I don't have the original .fla. That's why I'm posting here this is more reversing than exploiting. Another idea that comes to my mind is a flash bytecode decompiler, I don't really know, thanks in advance.

  cod     June 4, 2009 23:08.17 CDT
http://www.flashdecompiler.net/ but it be appropriate to use a debugger with flash player to check all memory exceptions

  frankboldewin     June 5, 2009 00:32.32 CDT
try nemo440. it's a more recent decompiler than flasm or flare.

http://www.docsultant.com/nemo440/

Note: Registration is required to post to the forums.

There are 31,328 total registered users.


Recently Created Topics
[help] Unpacking VMP...
Mar/12
Reverse Engineering ...
Jul/06
let 'IDAPython' impo...
Sep/24
set 'IDAPython' as t...
Sep/24
GuessType return une...
Sep/20
About retrieving the...
Sep/07
How to find specific...
Aug/15
How to get data depe...
Jul/07
Identify RVA data in...
May/06
Question about memor...
Dec/12


Recent Forum Posts
Finding the procedur...
rolEYder
Question about debbu...
rolEYder
Identify RVA data in...
sohlow
let 'IDAPython' impo...
sohlow
How to find specific...
hackgreti
Problem with ollydbg
sh3dow
How can I write olly...
sh3dow
New LoadMAP plugin v...
mefisto...
Intel pin in loaded ...
djnemo
OOP_RE tool available?
Bl4ckm4n


Recent Blog Entries
halsten
Mar/14
Breaking IonCUBE VM

oleavr
Oct/24
Anatomy of a code tracer

hasherezade
Sep/24
IAT Patcher - new tool for ...

oleavr
Aug/27
CryptoShark: code tracer ba...

oleavr
Jun/25
Build a debugger in 5 minutes

More ...


Recent Blog Comments
nieo on:
Mar/22
IAT Patcher - new tool for ...

djnemo on:
Nov/17
Kernel debugger vs user mod...

acel on:
Nov/14
Kernel debugger vs user mod...

pedram on:
Dec/21
frida.github.io: scriptable...

capadleman on:
Jun/19
Using NtCreateThreadEx for ...

More ...


Imagery
SoySauce Blueprint
Jun 6, 2008

[+] expand

View Gallery (11) / Submit