The firewall implementation must be configured to use cryptography to protect the integrity of remote access sessions.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
SRG-NET-000063-FW-000045	SRG-NET-000063-FW-000045	SRG-NET-000063-FW-000045_rule		High

Description
Remote access services enable users outside of the enclave (external interface) to have access to data and services within the private network. In many instances these connections traverse the Internet. Remote access sessions must use encryption to protect the integrity of information traveling through a public network, such as the Internet. Requiring remote access sessions to the enclave to traverse an encrypted tunnel makes it difficult to alter the session content.

Description

Remote access services enable users outside of the enclave (external interface) to have access to data and services within the private network. In many instances these connections traverse the Internet. Remote access sessions must use encryption to protect the integrity of information traveling through a public network, such as the Internet. Requiring remote access sessions to the enclave to traverse an encrypted tunnel makes it difficult to alter the session content.

STIG	Date
Firewall Security Requirements Guide	2012-12-10

Details

Check Text ( C-SRG-NET-000063-FW-000045_chk )
Examine all Internet Security Association and Key Management Protocol (ISAKMP) and IPSec policies configured on the firewall. Determine what encryption algorithm is used for Internet Key Exchange (IKE) and IPSec cryptographic hashing operations. If an approved cryptography such as SHA is not used to protect the integrity of remote access sessions, this is a finding.

Fix Text (F-SRG-NET-000063-FW-000045_fix)
Configure all ISAKMP and IPSec policies to use SHA for IKE and IPSec cryptographic hashing operations to protect the integrity of remote access sessions.