General Purpose Operating System Security Requirements Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The operating system must manage excess capacity, bandwidth, or other redundancy to limit the effects of information flooding types of Denial of Service (DoS) attacks.
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. Managing ex...Rule Medium Severity -
The operating system must generate error messages that provide information necessary for corrective actions without revealing information that could be exploited by adversaries.
Any operating system providing too much information in error messages risks compromising the data and security of the structure, and content of error messages needs to be carefully considered by t...Rule Medium Severity -
Any publically accessible connection to the operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system.
Display of a standardized and approved use notification before granting access to the publicly accessible operating system ensures privacy and security notification verbiage used is consistent with...Rule Medium Severity -
The operating system must audit all account modifications.
Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an exi...Rule Medium Severity -
The operating system must audit all account disabling actions.
When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In ...Rule Medium Severity -
The operating system must produce audit records containing information to establish the identity of any individual or process associated with the event.
Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associated with the events, security personnel cannot determine responsibility...Rule Medium Severity -
The operating system must protect audit tools from unauthorized access.
Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operatio...Rule Medium Severity -
The operating system must protect audit tools from unauthorized modification.
Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operatio...Rule Medium Severity -
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.
Failure to a known state can address safety or security in accordance with the mission/business needs of the organization. Failure to a known secure state helps prevent a loss of confidentiality, i...Rule Medium Severity -
The operating system must notify system administrators and ISSOs when accounts are created.
Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create a new ...Rule Medium Severity
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