Adobe Shockwave Player Memory Corruption Vulnerability - CVE-2010-2869

I'm writing on behalf of the Check Point Vulnerability Discovery Team to publish the following vulnerability.

Check Point Software Technologies - Vulnerability Discovery Team (VDT)
http://www.checkpoint.com/defense/

Memory corruption when Adobe Shockwave Player parses .dir media file
CVE-2010-2869

INTRODUCTION

Adobe Shockwave Player is the Adobe plugin to many different browsers to view rich-media content on the web including animations, interactive presentations, and online entertainment.

Adobe Shockwave player does not properly parse .dir media file, which causes a corruption in module IML32.dll by opening a malformed file with an invalid value located in PoC repro10.dir at offset 0x3712.

This problem was confirmed in the following versions of Adobe Shockwave Player, other versions may be also affected.

Shockwave Player version 11.5.7.609 and older for Windows and MacOS

CVSS Scoring System

The CVSS score is: 9
Base Score: 10
Temporal Score: 9
We used the following values to calculate the scores:
Base score is: AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal score is: E:POC/RL:U/RC:C

TRIGGERING THE PROBLEM

To trigger the problem a PoC file (repro10.dir) is available to interested parts.

DETAILS

Disassembly:

7C9011DD > 8BFF MOV EDI,EDI
7C9011DF 55 PUSH EBP
7C9011E0 8BEC MOV EBP,ESP
7C9011E2 83EC 54 SUB ESP,54
7C9011E5 56 PUSH ESI
7C9011E6 64:A1 18000000 MOV EAX,DWORD PTR FS:[18]
7C9011EC 803D 94E0977C 00 CMP BYTE PTR DS:[7C97E094],0
7C9011F3 8B75 08 MOV ESI,DWORD PTR SS:[EBP+8]
7C9011F6 8945 FC MOV DWORD PTR SS:[EBP-4],EAX
7C9011F9 0F85 F7EC0000 JNZ ntdll.7C90FEF6
7C9011FF F646 10 10 TEST BYTE PTR DS:[ESI+10],10
7C901203 0F84 EDEC0000 JE ntdll.7C90FEF6
7C901209 5E POP ESI
7C90120A C9 LEAVE
7C90120B C2 0400 RETN 4
7C90120E > CC INT3
7C90120F C3 RETN <— Stop Here :)

EIP = 0x00000000

CREDITS

This vulnerability was discovered and researched by Rodrigo Rubira Branco from Check Point Vulnerability Discovery Team (VDT).

Best Regards,

Rodrigo.

–
Rodrigo Rubira Branco
Senior Security Researcher
Vulnerability Discovery Team (VDT)
Check Point Software Technologies