Issue #777 has been updated by Clément OUDOT.

Status changed from New to Assigned
Assigned to set to Clément OUDOT
Target version set to self-service-password-0.9


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Bug #777: Self-Service-Password: Not honoring settings for password complexity.
http://tools.lsc-project.org/issues/777

Author: Bill Graboyes
Status: Assigned
Priority: Normal
Assigned to: Clément OUDOT
Category: 
Target version: self-service-password-0.9


Hi Folks,

Love the product, I did however notice a bug.

If the number of password requirements > number of character classes the 
requirements win.  This is not the behavior that was expected.

Looking through the code it looks as if the problem stems from the following 
lines of code in ./lib/functions.inc.php:

<pre>
function check_password_strength( $password, $oldpassword, $pwd_policy_config ) 
{
    extract( $pwd_policy_config );

--snip--
    # Complexity: checks for lower, upper, special, digits
    if ( $pwd_complexity ) {
        $complex = 0;
        if ( $special > 0 ) { $complex++; }
        if ( $digit > 0 ) { $complex++; }
        if ( $lower > 0 ) { $complex++; }
        if ( $upper > 0 ) { $complex++; }
        if ( $complex < $pwd_complexity ) { $result="notcomplex"; }
    }

    # Minimal lenght
    if ( $pwd_min_length and $length < $pwd_min_length ) { $result="tooshort"; }

    # Maximal lenght
    if ( $pwd_max_length and $length > $pwd_max_length ) { $result="toobig"; }

    # Minimal lower chars
    if ( $pwd_min_lower and $lower < $pwd_min_lower ) { $result="minlower"; }

    # Minimal upper chars
    if ( $pwd_min_upper and $upper < $pwd_min_upper ) { $result="minupper"; }

    # Minimal digit chars
    if ( $pwd_min_digit and $digit < $pwd_min_digit ) { $result="mindigit"; }

    # Minimal special chars
    if ( $pwd_min_special and $special < $pwd_min_special ) { 
$result="minspecial"; }

    # Forbidden chars
    if ( $forbidden > 0 ) { $result="forbiddenchars"; }

    # Same as old password?
    if ( $pwd_no_reuse and $password === $oldpassword ) { $result="sameasold"; }

    return $result;
}
</pre>

If I were to recommend a patch, since you are already calculating the  the 
pwd_complexity it would probably go something like this:

<pre>
function check_password_strength( $password, $oldpassword, $pwd_policy_config ) 
{
    extract( $pwd_policy_config );

--snip--
    # Complexity: checks for lower, upper, special, digits
    if ( $pwd_complexity ) {
        $complex = 0;
        if ( $special > 0 ) { $complex++; }
        if ( $digit > 0 ) { $complex++; }
        if ( $lower > 0 ) { $complex++; }
        if ( $upper > 0 ) { $complex++; }
        if ( $complex < $pwd_complexity ) { $result="notcomplex"; }
    }
    else {

        # Minimal lenght
        if ( $pwd_min_length and $length < $pwd_min_length ) { 
$result="tooshort"; }

        # Maximal lenght
        if ( $pwd_max_length and $length > $pwd_max_length ) { 
$result="toobig"; }

        # Minimal lower chars
        if ( $pwd_min_lower and $lower < $pwd_min_lower ) { $result="minlower"; 
}

        # Minimal upper chars
        if ( $pwd_min_upper and $upper < $pwd_min_upper ) { $result="minupper"; 
}

        # Minimal digit chars
        if ( $pwd_min_digit and $digit < $pwd_min_digit ) { $result="mindigit"; 
}

        # Minimal special chars
        if ( $pwd_min_special and $special < $pwd_min_special ) { 
$result="minspecial"; }
    }

    # Forbidden chars
    if ( $forbidden > 0 ) { $result="forbiddenchars"; }

    # Same as old password?
    if ( $pwd_no_reuse and $password === $oldpassword ) { $result="sameasold"; }

    return $result;
}
</pre>

Thanks,
tc3driver


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