Title : RealPlayer 15.0.6.14(.3g2) WriteAV Vulnerability
Version : 15.0.6.14
Date : 2012-10-29
Vendor : http://www.real.com/
Impact : High
Contact : coolkaveh [at] rocketmail.com
Twitter : @coolkaveh
tested : windows 7 x64
Author : coolkaveh
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Bug :
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context-dependent
Successful exploits can allow attackers to execute arbitrary code
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(f84.8c8): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=040d1370
ebx=7fdfe2d0
ecx=0a67f798
edx=0a67f7a8
esi=00000000
edi=00000004
eip=66fc94df
esp=3c6c1a80
ebp=0a67f764 iopl=0 nv up ei pl nz na po nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010202
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files (x86)\Real\RealPlayer\codecs\dmp4.dll -
dmp4!GetGUID+0x1836f:
66fc94df 8944241c mov dword ptr [esp+1Ch],eax ss:002b:3c6c1a9c=????????
0:029> !exploitable -v
HostMachine\HostUser
Executing Processor Architecture is x86
Debuggee is in User Mode
Debuggee is a live user mode debugging session on the local machine
Event Type: Exception
Exception Faulting Address: 0x3c6c1a9c
First Chance Exception Type: STATUS_ACCESS_VIOLATION (0xC0000005)
Exception Sub-Type: Write Access Violation
Exception Hash (Major/Minor): 0x247c7f22.0x247c7f63
Stack Trace:
dmp4!GetGUID+0x1836f
Instruction Address: 0x0000000066fc94df
Description: User Mode Write AV
Short Description: WriteAV
Exploitability Classification: EXPLOITABLE
Recommended Bug Title: Exploitable - User Mode Write AV starting at dmp4!GetGUID+0x000000000001836f (Hash=0x247c7f22.0x247c7f63)
User mode write access violations that are not near NULL are exploitable.
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Proof of concept included.
http://www21.zippyshare.com/v/83302158/file.html
