STIGQter STIGQter: STIG Summary: Cisco ASA Firewall Security Technical Implementation Guide Version: 2 Release: 1 Benchmark Date: 24 Jul 2024:

The Cisco ASA must be configured to use TCP when sending log records to the central audit server.

DISA Rule

SV-239858r819136_rule

Vulnerability Number

V-239858

Group Title

SRG-NET-000098-FW-000021

Rule Version

CASA-FW-000100

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the ASA to use TCP when sending log records to the syslog server.

ASA(config)# logging host NDM_INTERFACE 10.1.22.2 6/1514
ASA(config)# logging permit-hostdown

Check Contents

Review the ASA configuration and verify it is configured to use TCP as shown in the example below.

logging host NDM_INTERFACE 10.1.22.2 6/1514
logging permit-hostdown

Note: The command "logging permit-hostdown" must also be configured to ensure that when either the syslog server is down or the log queue is full, new connections to ASA are allowed, to prevent an unintended denial of service. However, log records can be lost if the internal queue fills before restoring the connection to the log server.

If the ASA is not configured to use TCP when sending log records to the central audit server, this is a finding.

Vulnerability Number

V-239858

Documentable

False

Rule Version

CASA-FW-000100

Severity Override Guidance

Review the ASA configuration and verify it is configured to use TCP as shown in the example below.

logging host NDM_INTERFACE 10.1.22.2 6/1514
logging permit-hostdown

Note: The command "logging permit-hostdown" must also be configured to ensure that when either the syslog server is down or the log queue is full, new connections to ASA are allowed, to prevent an unintended denial of service. However, log records can be lost if the internal queue fills before restoring the connection to the log server.

If the ASA is not configured to use TCP when sending log records to the central audit server, this is a finding.

Check Content Reference

M

Target Key

5339