Firewall Security Requirements Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-NET-000019
<GroupDescription></GroupDescription>Group -
The firewall must immediately use updates made to policy enforcement mechanisms such as firewall rules, security policies, and security zones.
<VulnDiscussion>Information flow policies regarding dynamic information flow control include, for example, allowing or disallowing informatio...Rule Medium Severity -
SRG-NET-000061
<GroupDescription></GroupDescription>Group -
The firewall that filters traffic from the VPN access points must be configured with organization-defined filtering rules that apply to the monitoring of remote access traffic.
<VulnDiscussion>Remote access devices (such as those providing remote access to network devices and information systems) that lack automated ...Rule Medium Severity -
SRG-NET-000074
<GroupDescription></GroupDescription>Group -
The firewall must generate traffic log entries containing information to establish what type of events occurred.
<VulnDiscussion>Without establishing what type of event occurred, it would be difficult to establish, correlate, and investigate the events l...Rule Medium Severity -
SRG-NET-000075
<GroupDescription></GroupDescription>Group -
The firewall must generate traffic log entries containing information to establish when (date and time) the events occurred.
<VulnDiscussion>Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to...Rule Medium Severity -
SRG-NET-000076
<GroupDescription></GroupDescription>Group -
The firewall must generate traffic log entries containing information to establish the location on the network where the events occurred.
<VulnDiscussion>Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events leading up t...Rule Medium Severity -
SRG-NET-000077
<GroupDescription></GroupDescription>Group -
The firewall must generate traffic log entries containing information to establish the source of the events, such as the source IP address at a minimum.
<VulnDiscussion>Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up...Rule Low Severity -
SRG-NET-000078
<GroupDescription></GroupDescription>Group -
The firewall must generate traffic log entries containing information to establish the outcome of the events, such as, at a minimum, the success or failure of the application of the firewall rule.
<VulnDiscussion>Without information about the outcome of events, security personnel cannot make an accurate assessment as to whether an attac...Rule Medium Severity -
SRG-NET-000089
<GroupDescription></GroupDescription>Group -
In the event that communication with the central audit server is lost, the firewall must continue to queue traffic log records locally.
<VulnDiscussion>It is critical that when the network element is at risk of failing to process traffic logs as required, it takes action to mi...Rule Medium Severity -
SRG-NET-000098
<GroupDescription></GroupDescription>Group -
The firewall must be configured to use TCP when sending log records to the central audit server.
<VulnDiscussion>If the default UDP protocol is used for communication between the hosts and devices to the Central Log Server, then log recor...Rule Medium Severity -
SRG-NET-000099
<GroupDescription></GroupDescription>Group -
The firewall must protect the traffic log from unauthorized modification of local log records.
<VulnDiscussion>If audit data were to become compromised, forensic analysis and discovery of the true source of potentially malicious system ...Rule Medium Severity
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