ASA WebVPN Citrix Web Interface SSO '%' In User's Password
We have been running a Cisco ASA 5510 (8.3(2)) using WebVPN passing credentials through to a Citrix Web Interface for single sign using the post plugin (latest version) for sometime now. We have found it to work well and up until now have had no problems.
We do have a slightly different setup as we use the CSCO_WEBVPN_MACRO1 variable in order to pass the password rather than CSCO_WEBVPN_PASSWORD as we use a third party two factor authentication radius platform.
The problem we have discovered is that if a user decides to set a password containing a '%' symbol this stops the system from working. The post plugin does not even seem to fire. It seems to authenticate fine but then all you see is a blank screen, rather than the usual green loading bar from the post plugin.
We have also found from testing this also breaks if a user decides to have a '&' symbol in their password, although the outcome is slightly different in that it loads but at fails to authenticate to the Citrix Web Interface and so prompts for login details. This is not as much of an issue as you can still continue to login manually to the Citrix Web Interface.
I know most users do not have these symbols in their password but we have recently found a few that do! A workaround is of course to ask the user to change their password but it would be great to find a solution to this issue.
Has anyone else using this setup come across this issue? If so do you know of a fix?
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