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General Purpose Operating System Security Requirements Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • The operating system must authenticate peripherals before establishing a connection.

    Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drive...
    Rule Medium Severity
  • SRG-OS-000379

    Group
  • SRG-OS-000383

    Group
  • The operating system must prohibit the use of cached authenticators after one day.

    If cached authentication information is out-of-date, the validity of the authentication information may be questionable.
    Rule Medium Severity
  • SRG-OS-000384

    Group
  • The operating system, for PKI-based authentication, must implement a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network.

    Without configuring a local cache of revocation data, there is the potential to allow access to users who are no longer authorized (users with revoked certificates).
    Rule Medium Severity
  • SRG-OS-000392

    Group
  • The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions.

    If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addres...
    Rule Medium Severity
  • SRG-OS-000393

    Group
  • 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
  • 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
  • SRG-OS-000404

    Group
  • SRG-OS-000405

    Group
  • SRG-OS-000420

    Group
  • SRG-OS-000423

    Group
  • SRG-OS-000424

    Group

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