Cisco ASA VPN Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-NET-000089-VPN-000330
Group -
The Cisco ASA remote access VPN server must be configured to generate log records containing information to establish the source of the events.
Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment...Rule Low Severity -
SRG-NET-000091-VPN-000350
Group -
The Cisco ASA remote access VPN server must be configured to use a FIPS-validated algorithm and hash function to protect the integrity of TLS remote access sessions.
Without integrity protection, unauthorized changes may be made to the log files and reliable forensic analysis and discovery of the source of malicious system activity may be degraded. Remote acce...Rule Medium Severity -
SRG-NET-000234-VPN-000810
Group -
The Cisco ASA remote access VPN server must be configured to generate unique session identifiers using a FIPS-validated Random Number Generator (RNG) based on the Deterministic Random Bit Generators (DRBG) algorithm.
Both IPsec and TLS gateways use the RNG to strengthen the security of the protocols. Using a weak RNG will weaken the protocol and make it more vulnerable. Use of a FIPS validated RNG that is not ...Rule Medium Severity -
SRG-NET-000063-VPN-000220
Group -
The Cisco ASA remote access VPN server must be configured to use SHA-2 at 384 bits or greater for hashing to protect the integrity of IPsec remote access sessions.
Without strong cryptographic integrity protections, information can be altered by unauthorized users without detection. SHA-1 is considered a compromised hashing standard and is being phased out o...Rule Medium Severity -
SRG-NET-000317-VPN-001090
Group -
SRG-NET-000525-VPN-002330
Group
Node 2
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