Here's the sample config for webvpn on ASA:
http://www.cisco.com/c/en/us/support/docs/security/asa-5500-x-series-next-generation-firewalls/70475-webvpnasa.html
Its difficult to provide a configuration which covers all vulnerabilities, however you can upgrade ASA code to latest (9.3.2.2 or later) which has fix for all vulnerabilities
Also, while using webvpn or anyconnect, do not use sslv3. Cisco ASA now supports the latest TLS v1.2 which is not vulnerable as of now.
You can also keep track of all vulnerabilities on www.securityweek.com and check with Vendors as and when the fix is available.
http://www.securityweek.com/freak-vulnerability-exposes-ssltls-security-hole (Freak is the latest one)
Hope this helps.
Regards,
Puneesh
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