Cisco ASA – Disable SSLv3 (Force TLSv1.0) – Mitigate POODLE
KB ID 0001052 Problem By default the Cisco ASA will allow connection via SSLv3. The POODLE exploit works by forcing SSL to fall back to SSLv3 and then decrypting that communication. However you are still not completely protected as per this Threat Validation, so the ASA platform can still be attacked via TLSv1.0. Note: At time of writing TLSv1.2 is not supported, but it is on the road-map for version 9.3(2). So this procedure will not...
ASA 5500 AnyConnect – Change Preferred Encryption Cipher Order
KB ID 0001058 Problem A few days ago I wrote about disabling SSL v3.0 to force your clients to connect with the more secure TLS v1.0. But what if your AnyConnect clients chose to connect with a weaker encryption cipher? The ciphers your firewall offer (by default) will vary depending on what OS your ASA is running. Solution 1. To see what your cipher you are connected with look on the statistics tab, below we are connecting with the...