Preview Tool

Cisco Bug: CSCvu26561 - WebVPN SSO Gives Unexpected Results when Integrated with Kerberos

Last Modified

Sep 17, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases


Description (partial)

Issue seems to be with the SSO feature when integrating with Kerberos.

An example of the issue is as follows:
User logs in to the clientless VPN.
User attempts to open a bookmark and gets a prompt to log in again.

Expected Behavior:
User logs in to the Clientless VPN.
User opens bookmark. No further authentication is prompted and bookmark opens.

debug kerberos 255 may show the following output:
"Failed to add PA data for client"
"Failed to build AS REQ with required pre-authentication data"
"KCD self-ticket retrieval failed. status -3."

Using aaa-server protocol kerberos and kdc-server under webvpn
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.