When you consider how to implement LDAP security, you must consider server security and application security.
The cfldap
tag supports secure socket layer (SSL) v2 security. This security provides certificate-based validation of the LDAP server. It also encrypts data transferred between the ColdFusion server and the LDAP server, including the user password, and ensures the integrity of data passed between the servers. To specify SSL v2 security, set the cfladap
tag secure="cfssl_basic"
attribute.
ColdFusion MX uses Java Native Directory Interface (JNDI), the LDAP provider, and an SSL package to create the client side of an SSL communication. The LDAP server provides the server side. The LDAP server that the cfldap
tag connects to using SSL holds an SSL server certificate, a certificate that is securely "signed" by a trusted authority and identifies (authenticates) the sender. During the initial SSL connection, the LDAP server presents its server certificate to the client. If the client trusts this certificate, the SSL connection is established and secure LDAP communication can begin.
ColdFusion determines whether to trust the server by comparing the server's certificate with the information in the jre/lib/security/cacerts keystore of the JRE used by ColdFusion MX. The ColdFusion MX default cacerts file contains information about many certificate granting authorities. If you must update the file with additional information, you can use the keytool utility in the ColdFusion jre/bin directory to import certificates that are in X.509 format. For example, enter the following:
keytool -import -keystore cacerts -alias ldap -file ldap.crt -keypass bl19mq
The keytool utility initial keypass password is "change it". For more information on using the keytool utility, see the Sun JDK documentation.
Once ColdFusion establishes secure communication with the server, it must provide the server with login credentials. You specify the login credentials in the cfldap
tag username
and password
attributes. When the server determines that the login credentials are valid, ColdFusion can access the directory.
To use security, first ensure that the LDAP server supports SSL v2 security.
Specify the cfldap
tag secure
attribute as follows:
secure = "cfssl_basic"
For example:
<cfldap action="modify" modifyType="add" atributes="cn=Lizzie" dn="uid=lborden, ou=People, o=Airius.com" server=#myServer# username=#myUserName# password=#myPassword# secure="cfssl_basic" port=636>
The port
attribute specifies the server port used for secure LDAP communications, which is 636 by default. If you do not specify a port, ColdFusion attempts to connect to the default, nonsecure, LDAP port 389.
To ensure application security, you must prevent outsiders from gaining access to the passwords that you use in cfldap
tags. The best way to do this is to use variables for your username
and password
attributes. You can set these variables on one encrypted application page. For more information on securing applications, see Securing Applications.