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From <Carlo.Acco...@ibs-ag.com>
Subject RE: ApacheDS Password policy issues
Date Thu, 10 Nov 2011 15:23:31 GMT
Hi, my fault for the delay responding..  I'm running 2.0.0-M4-SNAPSHOT off the trunk. 

I'm trying to capture response controls in 2 cases and I cannot get either to work. 

a.) When I update the userPassword attribute and policy requirements are not met
b.) When the user logs in and policy threshold is exceeded.  Expiry, history,  lockout, etc.

In both cases either the response controls are null  or the response control returned has
no data. Details below.

I have created password request and response control classes that implement javax.naming.ldap.Control
The interface method getId() returns "1.3.6.1.4.1.42.2.27.8.5.1" which is a static member
named OID. 
The policy response class extends the request class. 

I have a ControlFactory Class which implements javax.naming.ldap.ControlFactory and is added
to my environment like this. 

env.put(LdapContext.CONTROL_FACTORIES,"com.my.MyControlFactory");

The interface method below in my control factory only tests for data.

    public Control getControlInstance(Control ctl) {       
        Control result = null;
        if (ctl.getID().equals(ControlPasswordPolicyResponse.OID)) {
                if (ctl.getEncodedValue() == null) {
                		System.out.println("No data in response control");
                   } 
        }
        return result;
    }

For example, when I try and update a password (that's in the history) the following exception
is thrown but the response controls are null

javax.naming.directory.InvalidAttributeValueException: [LDAP: error code 19 - CONSTRAINT_VIOLATION:
failed for MessageType : MODIFY_REQUEST
Message ID : 2
    Modify Request
        Object : 'uid=1320256180937,ou=users,ou=int,o=cpro'
            Modification[0]
                Operation :  replace
                Modification
    userPassword: '0x31 0x32 0x33 0x34 0x35 0x36 '
org.apache.directory.shared.ldap.model.message.ModifyRequestImpl@b6209aee    ManageDsaITImpl
Control
        Type OID    : '2.16.840.1.113730.3.4.2'
        Criticality : 'false'
'
: invalid reuse of password present in password history]; remaining name 'uid=1320256180937,ou=users,ou=int,o=cpro'

Again  if the supplied password is too short, I get the exception but the response controls
are null

javax.naming.directory.InvalidAttributeValueException: [LDAP: error code 19 - CONSTRAINT_VIOLATION:
failed for MessageType : MODIFY_REQUEST
Message ID : 2
    Modify Request
        Object : 'uid=1320878789594,ou=users,ou=ext,o=cpro'
            Modification[0]
                Operation :  replace
                Modification
    userPassword: '0x31 '
org.apache.directory.shared.ldap.model.message.ModifyRequestImpl@67f2066a    ManageDsaITImpl
Control
        Type OID    : '2.16.840.1.113730.3.4.2'
        Criticality : 'false'
'
: Password should have a minmum of 3 characters]; remaining name 'uid=1320878789594,ou=users,ou=ext,o=cpro'

The OID in these exceptions is a Netscape V3 control
http://www.alvestrand.no/objectid/2.16.840.1.113730.3.4.html


Finally when the policy is set to expire  after 30 seconds (ads-pwdmaxage=30) and the user's
password is older than this, a response 
Control is returned, but is getEncodedData() is null. This same thing happens when policy
conditions are met and the login is successful. 

Thanks for your help. Carlo



-----Original Message-----
From: ayyagarikiran@gmail.com [mailto:ayyagarikiran@gmail.com] On Behalf Of Kiran Ayyagari
Sent: Thursday, October 13, 2011 4:17 PM
To: users@directory.apache.org
Subject: Re: ApacheDS Password policy issues

On Tue, Oct 11, 2011 at 3:11 PM,  <Carlo.Accorsi@ibs-ag.com> wrote:
> Hi, I've been working with the password policy functionality this week and have encountered
a few issues I'm hoping you can help clarify.
>
> These attributes are on the policy itself unless otherwise specified.
>
>
> 1.       ads-pwdminlength (minimum # of chars require for a password) having a non-zero
value accepts passwords that are any length.
>
> a.       I didn't test ads-pwdmaxlength but might check that while you're there.
>
>
>
> 2.       The value ads-pwmaxage is supposed to be how long a password is valid (in
seconds).
>
> a.       Setting this to a non-zero value causes a pwdChangedTime 
> attribute to be set on the user when their password changes (ok)
>
> b.      However it never enforces the expiry
>
>                                                          
   i.      
> The ads-pwdgraceauthnlimit ( # of grace logins after expiration) 
> doesn't seem to have any effect
>
>                                                          
 ii.      
> Also setting  ads-pwdexpirewarning above and below  the max age 
> doesn't seem to matter either
>
> c.       If it did expire, how is this indicated on the user object ?
>
>
have fixed this issue. Server indicates the user about expiry by sending the ppolicy response
control after setting the value for timeBeforeExpiration property to the time left before
the password expires.
Note that this only happens if the user sent a request with ppolicy control (OID - 1.3.6.1.4.1.42.2.27.8.5.1)
>
> 3.       When ads-pwdmaxfailure (number of times failed bind is permitted) is set
to 5 , it allows 11 login failures before locking the account.
>
> a.       Each login failure creates an additional pwdFailureTime 
> attribute for the user (ok)
>
> b.      pwdAccountLockedTime attribute is created after the 11th  
> failed bind. (Also what we want, but after 5 failures)
>
> c.       This might be some caching issue because I think once it took 13 failed attempts
before it locked.
>
>
this is a bit strange, do you have some custom caching mechanism in place? OR some custom
authenticator implementation that doesn't inherit the AbstractAuthenticator?
>
> 4.       When ads-pwdinhistory (# of old passwords kept so they're not reused) is
set to 5 .
>
> a.       Users initially have no pwdHistory attribute (ok)
>
> b.      Each of the first 5 password changes happens successfully. 
> Each time adding new pwdHistory attribute to the user. (ok)
>
> c.       On the 6th  change, the exception below occurs. It's like it needs to reuse
the first pwdHistory attribute but cannot.
>
>
have fixed this issue, please verify with the latest trunk and let us know.
> #!RESULT ERROR
> #!CONNECTION ldap://localhost:10389
> #!DATE 2011-10-11T14:32:58.205
> #!ERROR [LDAP: error code 20 - ATTRIBUTE_OR_VALUE_EXISTS: failed for 
> MessageType : MODIFY_REQUEST Message ID : 29     Modify Request         
> Object : 'uid=1286309809116,ou=users,ou=int,o=cpro'             
> Modification[0]                 Operation :  replace                

> Modification     userPassword: '0x7B 0x53 0x48 0x41 0x7D 0x79 0x59 
> 0x53 0x75 0x30 0x42 0x53 0x75 0x78 0x32 0x49 ...' 
> org.apache.directory.shared.ldap.model.message.ModifyRequestImpl@3d1ac
> ad9: ERR_54 Cannot add a value which is already present : '0x32 0x30 
> 0x31 0x31 0x31 0x30 0x31 0x31 0x31 0x38 0x33 0x32 0x30 0x34 0x5A 0x23 
> ...']
> dn: uid=1286309809117,ou=users,ou=int,o=cpro
> changetype: modify
> replace: userPassword
>
> userPassword:: e1NIQX15VVN1MEJTdXgySTZWUEJaSGFCNmhmMUxkaTA9
>
>
>
>
> I'll keep testing and thank you in advance!!
> Carlo Accorsi
>
>
>
>



--
Kiran Ayyagari

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