II - Mission Support Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000239
<GroupDescription></GroupDescription>Group -
The operating system must audit all account modifications.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000240
<GroupDescription></GroupDescription>Group -
The operating system must audit all account disabling actions.
<VulnDiscussion>When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual...Rule Medium Severity -
SRG-OS-000241
<GroupDescription></GroupDescription>Group -
The operating system must audit all account removal actions.
<VulnDiscussion>When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual ...Rule Medium Severity -
SRG-OS-000250
<GroupDescription></GroupDescription>Group -
The operating system must implement cryptography to protect the integrity of remote access sessions.
<VulnDiscussion>Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote acce...Rule High Severity -
SRG-OS-000254
<GroupDescription></GroupDescription>Group -
The operating system must initiate session audits at system start-up.
<VulnDiscussion>If auditing is enabled late in the start-up process, the actions of some start-up processes may not be audited. Some audit sy...Rule Medium Severity -
SRG-OS-000255
<GroupDescription></GroupDescription>Group -
The operating system must produce audit records containing information to establish the identity of any individual or process associated with the event.
<VulnDiscussion>Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associ...Rule Medium Severity -
SRG-OS-000256
<GroupDescription></GroupDescription>Group -
The operating system must protect audit tools from unauthorized access.
<VulnDiscussion>Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...Rule Medium Severity -
SRG-OS-000257
<GroupDescription></GroupDescription>Group -
The operating system must protect audit tools from unauthorized modification.
<VulnDiscussion>Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...Rule Medium Severity -
SRG-OS-000258
<GroupDescription></GroupDescription>Group -
The operating system must protect audit tools from unauthorized deletion.
<VulnDiscussion>Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefo...Rule Medium Severity -
SRG-OS-000259
<GroupDescription></GroupDescription>Group -
The operating system must limit privileges to change software resident within software libraries.
<VulnDiscussion> If the operating system were to allow any user to make changes to software libraries, then those changes might be implemente...Rule Medium Severity -
SRG-OS-000266
<GroupDescription></GroupDescription>Group -
The operating system must enforce password complexity by requiring that at least one special character be used.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity o...Rule Medium Severity -
SRG-OS-000269
<GroupDescription></GroupDescription>Group -
In the event of a system failure, the operating system must preserve any information necessary to determine cause of failure and any information necessary to return to operations with least disruption to mission processes.
<VulnDiscussion>Failure to a known state can address safety or security in accordance with the mission/business needs of the organization. Fa...Rule Medium Severity -
SRG-OS-000274
<GroupDescription></GroupDescription>Group -
The operating system must notify system administrators and ISSOs when accounts are created.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000275
<GroupDescription></GroupDescription>Group -
The operating system must notify system administrators and ISSOs when accounts are modified.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity -
SRG-OS-000276
<GroupDescription></GroupDescription>Group -
The operating system must notify system administrators and ISSOs when accounts are disabled.
<VulnDiscussion>When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual...Rule Medium Severity -
SRG-OS-000277
<GroupDescription></GroupDescription>Group -
The operating system must notify system administrators and ISSOs when accounts are removed.
<VulnDiscussion>When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual ...Rule Medium Severity -
SRG-OS-000278
<GroupDescription></GroupDescription>Group -
The operating system must use cryptographic mechanisms to protect the integrity of audit tools.
<VulnDiscussion>Protecting the integrity of the tools used for auditing purposes is a critical step toward ensuring the integrity of audit in...Rule High Severity -
SRG-OS-000279
<GroupDescription></GroupDescription>Group -
The operating system must automatically terminate a user session after inactivity time-outs have expired or at shutdown.
<VulnDiscussion>Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of ...Rule Medium Severity -
SRG-OS-000280
<GroupDescription></GroupDescription>Group -
The operating system must provide a logoff capability for user-initiated communications sessions when requiring user access authentication.
<VulnDiscussion>If a user cannot explicitly end an operating system session, the session may remain open and be exploited by an attacker; thi...Rule Medium Severity -
SRG-OS-000281
<GroupDescription></GroupDescription>Group -
The operating system must display an explicit logoff message to users indicating the reliable termination of authenticated communications sessions.
<VulnDiscussion>If a user cannot explicitly end an operating system session, the session may remain open and be exploited by an attacker; thi...Rule Medium Severity -
SRG-OS-000297
<GroupDescription></GroupDescription>Group -
The operating system must control remote access methods.
<VulnDiscussion>Remote access services, such as those providing remote access to network devices and information systems, which lack automate...Rule Medium Severity -
SRG-OS-000298
<GroupDescription></GroupDescription>Group -
The operating system must provide the capability to immediately disconnect or disable remote access to the operating system.
<VulnDiscussion>Without the ability to immediately disconnect or disable remote access, an attack or other compromise taking place would not ...Rule Medium Severity -
SRG-OS-000299
<GroupDescription></GroupDescription>Group -
The operating system must protect wireless access to and from the system using encryption.
<VulnDiscussion>Allowing devices and users to connect to or from the system without first authenticating them allows untrusted access and can...Rule Medium Severity -
SRG-OS-000300
<GroupDescription></GroupDescription>Group -
The operating system must protect wireless access to the system using authentication of users and/or devices.
<VulnDiscussion>Allowing devices and users to connect to the system without first authenticating them allows untrusted access and can lead to...Rule Medium Severity -
SRG-OS-000303
<GroupDescription></GroupDescription>Group -
The operating system must audit all account enabling actions.
<VulnDiscussion>Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing ...Rule Medium Severity
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