Adobe Flash Professional/Basic Bug in Parsing FLA Files Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID: 1019681|
SecurityTracker URL: http://securitytracker.com/id/1019681
(Links to External Site)
Date: Mar 20 2008
Execution of arbitrary code via network, User access via network|
Vendor Confirmed: Yes |
Version(s): Flash CS3 Professional, Flash Professional 8, and Flash Basic 8|
A vulnerability was reported in Adobe Flash Professional and Flash Basic. A remote user can cause arbitrary code to be executed on the target user's system.|
A remote user can create a specially crafted FLA file that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system. The code will run with the privileges of the target user.
The Mac versions of Flash Professional and Flash Basic are not affected.
Flash Player is not affected.
The vendor was notified on November 9, 2007.
cocoruder reported this vulnerability.
The original advisory is available at:
A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.|
No solution was available at the time of this entry.|
Adobe plans to issue a fix in the next major release of Flash Professional.
The Adobe advisory is available at:
Vendor URL: www.adobe.com/support/security/advisories/apsa08-03.html (Links to External Site)
Access control error|
|Underlying OS: Windows (Any)|
This archive entry has one or more follow-up message(s) listed below.|
Source Message Contents
Subject: [Full-disclosure] Adobe Flash CS3 Professional FLA File Parsing|
Adobe Flash CS3 Professional FLA File Parsing Multiple Local Code
More than three local code execute vulnerabilities exist in Adobe
Flash CS3 Professional while it is parsing FLA files. An attacker who
successfully exploit these vulnerabilities can run arbitrary code on
the affected system.
Affected Software Versions:
Adobe Flash CS3 Professional 9.0
Macromedia Flash MX 2004
All these vulnerabilities are due to the parser does not handle
the malformed FLA file accurately, by changing value of some special
addresses in normal FLA file, it can result in some unexpected errors
at "call" instruction, the following is one of the situations:
eax=00000000 ebx=00000000 ecx=41414141 edx=00000000 esi=08feac38 edi=0012eb2c
eip=00943502 esp=0012e15c ebp=08feac3c iopl=0 nv up ei pl nz na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00250206
*** ERROR: Symbol file could not be found. Defaulted to export
symbols for Flash-unprepped.exe -
00943502 8b01 mov eax,dword ptr
[ecx] ds:0023:41414141=????????, can be controlled
00943504 8b10 mov edx,dword ptr [eax]
00943506 6a01 push 1
00943508 ffd2 call edx ; code executing is possible
0094350a 8bbe48020000 mov edi,dword ptr [esi+248h]
00943510 3bfb cmp edi,ebx
00943512 899ef4010000 mov dword ptr [esi+1F4h],ebx
00943518 7410 je
>::basic_istream<char,std::char_traits<char> >+0x3d778a (0094352a)
It is confirmed that at least one of them can be written
successful working exploits for, on the other hand, because the FLA
file can not be loaded remotely, which can reduce the threat of these
Adobe has replied me that they will fix these vulnerabilities in
the next major release of Flash Professional, we suggest all of the
Adobe Flash CS3 Professional users do not open the FLA file which are
from distrustful source.
An advisory from the vendor can be found at:
Fortinet advisory can be found at:
2007.11.09 Vendor notified via email
2007.11.10 Vendor responded
2007.11.16 Vendor replied they can not find a way to exploit
2007.11.16 Send some notes to the vendor
2007.11.27 Vendor replied they still can not find a way to exploit
2007.11.28 Send an working exploit to the vendor
2008.03.11 Vendor replied there will not be a plan for developing
an update due to the threat of the vul, they will fix it via the next
2008.03.20 Coordinated vulnerability disclosure
Full-Disclosure - We believe in it.
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