When we try to use the 12.52 SP1 CR5 Web Services Security (WSS) Agent installed on WebSphere 8.5, username and password digest authentication is not working.
If we switch to plain text username and password authentication, the transaction is successful.
Why the digest authentication doesn't work ?
There is a limitiation with Active Directory User Store. For WS-Security Password Digest Authentication Scheme, the Authentication Scheme tries to retrieve attribute userPassword and compares the digest value that user sends a part of input request.
For Active Directory, UserPassword or unicodePwd attributes cannot be retrieved for security reasons.
WS-Security Username Password Authentication Scheme in Siteminder currently can support only cleartext form. We cannot support the Digest form because of these security reasons.
Below is link from Microsoft community :
"The users' password is stored in the Active Directory on a user object in the unicodePwd attribute. This attribute can be written under restricted conditions, but it cannot be read due to security reasons."
Workaround for this issue is to use the plain text username and password Authentication Scheme (cleartext).