Re: Problem with SATAN/VMS
Timothy Newsham (newsham@aloha.net)
Sat, 8 Apr 1995 15:49:44 -1000 (HST)
> SATAN on AIX has a similar problem.
> AIX emits a permission denied that the simple test (test -s) doesn't catch
>
> > The bourne shell script 'rsh.satan' falsely reports a vulnerability on
> > hosts that are running DEC VMS 6.1 This is because the OS sends the
> > following message to standard output:
> >
> > UCX$RSHD - Permission denied - host IP addr
> >
> > To fix, just add a test for the above string to the 'if $TEST -s
> > "$tmp_file"' test in 'rsh.satan'.
The correct way to test for success or failure is obvious from the
following (from the rshd man page):
DIAGNOSTICS
Except for the last one listed below, all diagnostic messages are re-
turned on the initial socket, after which any network connections are
closed. An error is indicated by a leading byte with a value of 1 (0 is
returned in step 9 above upon successful completion of all the steps pri-
or to the execution of the login shell).
If an rshd does not do this I'd be inclined to call it broken.
> Andreas Siegert afx@ibm.de / afx@barolo.ak.munich.ibm.com / AFX at IPNET