Application Layer Gateway (ALG) Security Requirements Guide (SRG)
Rules, Groups, and Values defined within the XCCDF Benchmark
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The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when threats identified by authoritative sources (e.g., IAVMs or CTOs) are detected.
<VulnDiscussion>Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay...Rule Medium Severity -
SRG-NET-000392-ALG-000143
<GroupDescription></GroupDescription>Group -
The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when root level intrusion events which provide unauthorized privileged access are detected.
<VulnDiscussion>Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay...Rule Medium Severity -
SRG-NET-000392-ALG-000147
<GroupDescription></GroupDescription>Group -
The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when user level intrusions which provide non-privileged access are detected.
<VulnDiscussion>Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay...Rule Medium Severity -
SRG-NET-000392-ALG-000148
<GroupDescription></GroupDescription>Group -
SRG-NET-000392-ALG-000149
<GroupDescription></GroupDescription>Group -
The ALG providing content filtering must generate an alert to, at a minimum, the ISSO and ISSM when new active propagation of malware infecting DoD systems or malicious code adversely affecting the operations and/or security of DoD systems is detected.
<VulnDiscussion>Without an alert, security personnel may be unaware of major detection incidents that require immediate action and this delay...Rule Medium Severity -
SRG-NET-000393-ALG-000144
<GroupDescription></GroupDescription>Group -
The ALG that implements spam protection mechanisms must be updated automatically.
<VulnDiscussion>Originators of spam messages are constantly changing their techniques in order to defeat spam countermeasures; therefore, spa...Rule Medium Severity -
SRG-NET-000501-ALG-000036
<GroupDescription></GroupDescription>Group -
The ALG must generate audit records when successful/unsuccessful attempts to delete security objects occur.
<VulnDiscussion>Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...Rule Medium Severity -
SRG-NET-000502-ALG-000037
<GroupDescription></GroupDescription>Group -
The ALG must generate audit records when successful/unsuccessful attempts to delete categories of information (e.g., classification levels) occur.
<VulnDiscussion>Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...Rule Medium Severity -
SRG-NET-000505-ALG-000039
<GroupDescription></GroupDescription>Group -
The ALG providing user access control intermediary services must generate audit records showing starting and ending time for user access to the system.
<VulnDiscussion>Without generating audit records that are specific to the security and mission needs of the organization, it would be difficu...Rule Medium Severity -
SRG-NET-000331-ALG-000041
<GroupDescription></GroupDescription>Group -
The ALG providing user access control intermediary services must provide the capability for authorized users to select a user session to capture or view.
<VulnDiscussion>Without the capability to select a user session to capture or view, investigations into suspicious or harmful events would be...Rule Medium Severity -
SRG-NET-000399-ALG-000042
<GroupDescription></GroupDescription>Group -
The ALG providing user access control intermediary services must provide the capability for authorized users to capture, record, and log all content related to a selected user session.
<VulnDiscussion>Without the capability to capture, record, and log content related to a user session, investigations into suspicious user act...Rule Medium Severity
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