[krbdev.mit.edu #2540]

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Date: Mon, 19 Apr 2004 15:38:19 -0500 (CDT)
From: William Fiveash <willf at alton.central.sun.com>
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To: krb5-bugs at mit.edu
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>Submitter-Id:	net
>Originator:	William Fiveash
>Organization:
	
Sun Microsystems Inc.
>Confidential:	
no
>Synopsis:	
krb5_get_in_tkt_with_password() called too many times in _kadm5_init_any()
>Severity:	
non-critical
>Priority:	
low
>Category:	
krb5-admin
>Class:		
sw-bug
>Release:	krb5-1.3.3
>Environment:
	
System: SunOS alton 5.10 s10_55 sun4u sparc SUNW,Sun-Blade-1000
Architecture: sun4

>Description:
	
In _kadm5_init_any() around line 357 I see:

     if (init_type == INIT_PASS) {
      for (i=0; preauth_search_list[i] >= 0; i++) {
           code = krb5_get_in_tkt_with_password(handle->context,

Where preauth_search_list is defined as:

/*
 * Try no preauthentication first; then try the encrypted timestamp
 * (stolen from krb5 kinit.c)
 */
static int preauth_search_list[] = {
     0,
     KRB5_PADATA_ENC_UNIX_TIME,
     -1                        
};

The for loop isn't required AFIK since krb5_get_in_tkt_with_password()
has logic to deal with the case where preauth is required.  As it stands
now the for loop can cause kadmin to needlessly prompt twice for a
password and still fail.

>How-To-Repeat:
	

If you can get preauth to fail this will cause krb5_get_in_tkt_with_password()
to be called twice.
>Fix:
	
Remove the "for (i=0; preauth_search_list[i] >= 0; i++) {" loop.