Photodex ProShow Producer 5.0.3310 Privilege Escalation

`Inshell Security Advisory  
http://www.inshell.net  
  
  
1. ADVISORY INFORMATION  
-----------------------  
Product: Photodex ProShow Producer  
Vendor URL: www.photodex.com  
Type: Incorrect Default Permissions [CWE-276]  
Date found: 2013-03-18  
Date published: 2013-03-19  
CVSSv2 Score: 7,2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)  
CVE: -  
  
  
2. CREDITS  
----------  
This vulnerability was discovered and researched by Julien Ahrens from  
Inshell Security.  
  
  
3. VERSIONS AFFECTED  
--------------------  
Photodex ProShow Producer v5.0.3310, older versions may be affected too.  
  
  
4. VULNERABILITY DESCRIPTION  
----------------------------  
A local privilege escalation vulnerability has been identified in  
Photodex ProShow Producer v5.0.3310.  
  
Insecure file permissions on the executable file "scsiaccess.exe", which  
is used by the application service "ScsiAccess" under the SYSTEM  
account, may allow a less privileged user to gain access to SYSTEM  
privileges. A local attacker or compromised process is able to replace  
the original application binary with a malicious application which will  
be executed by a victim user or after a ScsiAccess service restart.  
  
Tested on:  
Microsoft Windows 7 Ultimate 64 Bit (EN)  
Microsoft Windows 8 Enterprise 32 Bit (EN)  
  
  
5. PROOF-OF-CONCEPT (Code / Exploit)  
------------------------------------  
c:\Program Files\Photodex\ProShow Producer>icacls scsiaccess.exe  
scsiaccess.exe NT AUTHORITY\SYSTEM:(I)(F)  
BUILTIN\Administrators:(I)(F)  
BUILTIN\Users:(I)(RX)  
WIN-OOQCQK1QQ1L\blubb:(I)(F)  
APPLICATION PACKAGE AUTHORITY\ALL APPLICATION PACKAGES:(I)(RX)  
Everyone:(I)(F)  
  
  
For further Screenshots and/or PoCs visit:  
http://security.inshell.net/advisory/49  
  
  
6. SOLUTION  
-----------  
None  
  
  
7. REPORT TIMELINE  
------------------  
2013-03-18: Discovery of the vulnerability  
2013-03-19: Full Disclosure because the vendor ignored previous  
reports.  
  
  
8. REFERENCES  
-------------  
http://security.inshell.net/advisory/49  
`