III - Administrative Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000394
Group -
The operating system must implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions.
Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms such as...Rule High Severity -
SRG-OS-000395
Group -
The operating system must verify remote disconnection at the termination of nonlocal maintenance and diagnostic sessions, when used for nonlocal maintenance sessions.
If the remote connection is not closed and verified as closed, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Remote connections must be disco...Rule Medium Severity -
SRG-OS-000396
Group -
The operating system must implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.
Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher stand...Rule High Severity -
SRG-OS-000403
Group -
The operating system must only allow the use of DoD PKI-established certificate authorities for authentication in the establishment of protected sessions to the operating system.
Untrusted Certificate Authorities (CA) can issue certificates, but they may be issued by organizations or individuals that seek to compromise DoD systems or by organizations with insufficient secur...Rule Medium Severity -
SRG-OS-000404
Group -
The operating system must implement cryptographic mechanisms to prevent unauthorized modification of all information at rest on all operating system components.
Operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection ...Rule High Severity -
SRG-OS-000405
Group -
The operating system must implement cryptographic mechanisms to prevent unauthorized disclosure of all information at rest on all operating system components.
Operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection ...Rule High Severity -
SRG-OS-000420
Group -
The operating system must protect against or limit the effects of Denial of Service (DoS) attacks by ensuring the operating system is implementing rate-limiting measures on impacted network interfaces.
DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. This require...Rule Medium Severity -
SRG-OS-000423
Group -
The operating system must protect the confidentiality and integrity of transmitted information.
Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered. This requirem...Rule High Severity -
SRG-OS-000424
Group -
The operating system must implement cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS).
Encrypting information for transmission protects information from unauthorized disclosure and modification. Cryptographic mechanisms implemented to protect information integrity include, for exampl...Rule High Severity -
SRG-OS-000425
Group -
The operating system must maintain the confidentiality and integrity of information during preparation for transmission.
Information can be either unintentionally or maliciously disclosed or modified during preparation for transmission, for example, during aggregation, at protocol transformation points, and during pa...Rule Medium Severity
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