STIGQter STIGQter: STIG Summary:

General Purpose Operating System Security Requirements Guide

Version: 3

Release: 3 Benchmark Date: 28 Oct 2025

CheckedNameTitle
SV-203591r958362_ruleThe operating system must provide automated mechanisms for supporting account management functions.
SV-203592r958364_ruleThe operating system must automatically remove or disable temporary user accounts after 72 hours.
SV-203593r958368_ruleThe operating system must audit all account creations.
SV-203594r958388_ruleThe operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.
SV-203595r958390_ruleThe operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system.
SV-203596r958392_ruleThe operating system must display the Standard Mandatory DoD Notice and Consent Banner until users acknowledge the usage conditions and take explicit actions to log on for further access.
SV-203597r958398_ruleThe operating system must limit the number of concurrent sessions to ten for all accounts and/or account types.
SV-203598r958400_ruleThe operating system must retain a users session lock until that user reestablishes access using established identification and authentication procedures.
SV-203599r958402_ruleThe operating system must initiate a session lock after a 15-minute period of inactivity for all connection types.
SV-203600r982194_ruleThe operating system must provide the capability for users to directly initiate a session lock for all connection types.
SV-203601r958404_ruleThe operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image.
SV-203602r958406_ruleThe operating system must monitor remote access methods.
SV-203603r958408_ruleThe operating system must implement DoD-approved encryption to protect the confidentiality of remote access sessions.
SV-203604r958412_ruleThe operating system must produce audit records containing information to establish what type of events occurred.
SV-203605r958414_ruleThe operating system must produce audit records containing information to establish when (date and time) the events occurred.
SV-203606r958416_ruleThe operating system must produce audit records containing information to establish where the events occurred.
SV-203607r958418_ruleThe operating system must produce audit records containing information to establish the source of the events.
SV-203608r958420_ruleThe operating system must produce audit records containing information to establish the outcome of the events.
SV-203609r958422_ruleThe operating system must generate audit records containing the full-text recording of privileged commands.
SV-203610r958422_ruleThe operating system must produce audit records containing the individual identities of group account users.
SV-203611r958424_ruleThe operating system must alert the ISSO and SA (at a minimum) in the event of an audit processing failure.
SV-203613r958428_ruleThe operating system must provide the capability to centrally review and analyze audit records from multiple components within the system.
SV-203614r958430_ruleThe operating system must provide the capability to filter audit records for events of interest based upon all audit fields within audit records.
SV-203615r958432_ruleThe operating system must use internal system clocks to generate time stamps for audit records.
SV-203616r958434_ruleThe operating system must protect audit information from unauthorized read access.
SV-203617r958436_ruleThe operating system must protect audit information from unauthorized modification.
SV-203618r958438_ruleThe operating system must protect audit information from unauthorized deletion.
SV-203619r958442_ruleThe operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components.
SV-203620r958444_ruleThe operating system must allow only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited.
SV-203621r958446_ruleThe operating system must generate audit records when successful/unsuccessful attempts to access privileges occur.
SV-203622r958448_ruleThe operating system, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor.
SV-203623r958450_ruleThe operating system, for PKI-based authentication, must enforce authorized access to the corresponding private key.
SV-203624r958452_ruleThe operating system must map the authenticated identity to the user or group account for PKI-based authentication.
SV-203625r982195_ruleThe operating system must enforce password complexity by requiring that at least one uppercase character be used.
SV-203626r982196_ruleThe operating system must enforce password complexity by requiring that at least one lowercase character be used.
SV-203627r982197_ruleThe operating system must enforce password complexity by requiring that at least one numeric character be used.
SV-203628r982198_ruleThe operating system must require the change of at least 50 percent of the total number of characters when passwords are changed.
SV-203629r982199_ruleThe operating system must store only encrypted representations of passwords.
SV-203630r987796_ruleThe operating system must transmit only encrypted representations of passwords.
SV-203631r982188_ruleOperating systems must enforce 24 hours/1 day as the minimum password lifetime.
SV-203632r1038967_ruleOperating systems must enforce a 60-day maximum password lifetime restriction.
SV-203634r982202_ruleThe operating system must enforce a minimum 15-character password length.
SV-203635r958470_ruleThe operating system must obscure feedback of authentication information during the authentication process to protect the information from possible exploitation/use by unauthorized individuals.
SV-203636r1137691_ruleThe operating system must enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.
SV-203637r958478_ruleThe operating system must be configured to disable non-essential capabilities.
SV-203638r958480_ruleThe operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments.
SV-203639r958482_ruleThe operating system must uniquely identify and must authenticate organizational users (or processes acting on behalf of organizational users).
SV-203640r958484_ruleThe operating system must use multifactor authentication for network access to privileged accounts.
SV-203641r958486_ruleThe operating system must use multifactor authentication for network access to non-privileged accounts.
SV-203642r982203_ruleThe operating system must use multifactor authentication for local access to privileged accounts.
SV-203643r982204_ruleThe operating system must use multifactor authentication for local access to nonprivileged accounts.
SV-203644r982205_ruleThe operating system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator.
SV-203645r958494_ruleThe operating system must implement replay-resistant authentication mechanisms for network access to privileged accounts.
SV-203646r982206_ruleThe operating system must implement replay-resistant authentication mechanisms for network access to nonprivileged accounts.
SV-203647r958498_ruleThe operating system must uniquely identify peripherals before establishing a connection.
SV-203648r982189_ruleThe operating system must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity.
SV-203649r971535_ruleThe operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module.
SV-203650r958504_ruleThe operating system must uniquely identify and must authenticate non-organizational users (or processes acting on behalf of non-organizational users).
SV-203651r958506_ruleThe operating system must provide an audit reduction capability that supports on-demand reporting requirements.
SV-203652r958508_ruleThe information system must automatically remove or disable emergency accounts after the crisis is resolved or 72 hours.
SV-203653r958510_ruleThe operating system must employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions.
SV-203655r1117266_ruleThe operating system must separate user functionality (including user interface services) from operating system management functionality.
SV-203656r958518_ruleThe operating system must isolate security functions from nonsecurity functions.
SV-203657r1137695_ruleOperating systems must prevent unauthorized and unintended information transfer via shared system resources.
SV-203658r958528_ruleThe operating system must manage excess capacity, bandwidth, or other redundancy to limit the effects of information flooding types of Denial of Service (DoS) attacks.
SV-203659r970703_ruleThe operating system must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements.
SV-203660r958550_ruleThe operating system must fail to a secure state if system initialization fails, shutdown fails, or aborts fail.
SV-203661r958552_ruleThe operating system must protect the confidentiality and integrity of all information at rest.
SV-203663r958564_ruleThe operating system must generate error messages that provide information necessary for corrective actions without revealing information that could be exploited by adversaries.
SV-203664r958566_ruleThe operating system must reveal error messages only to authorized users.
SV-203665r958586_ruleAny publically accessible connection to the operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system.
SV-203666r991551_ruleThe operating system must audit all account modifications.
SV-203667r991552_ruleThe operating system must audit all account disabling actions.
SV-203668r991553_ruleThe operating system must audit all account removal actions.
SV-203669r991554_ruleThe operating system must implement cryptography to protect the integrity of remote access sessions.
SV-203670r991555_ruleThe operating system must initiate session audits at system start-up.
SV-203671r991556_ruleThe operating system must produce audit records containing information to establish the identity of any individual or process associated with the event.
SV-203672r991557_ruleThe operating system must protect audit tools from unauthorized access.
SV-203673r991558_ruleThe operating system must protect audit tools from unauthorized modification.
SV-203674r991559_ruleThe operating system must protect audit tools from unauthorized deletion.
SV-203675r991560_ruleThe operating system must limit privileges to change software resident within software libraries.
SV-203676r991561_ruleThe operating system must enforce password complexity by requiring that at least one special character be used.
SV-203677r991562_ruleIn 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.
SV-203678r991563_ruleThe operating system must notify system administrators and ISSOs when accounts are created.
SV-203679r991564_ruleThe operating system must notify system administrators and ISSOs when accounts are modified.
SV-203680r991565_ruleThe operating system must notify system administrators and ISSOs when accounts are disabled.
SV-203681r991566_ruleThe operating system must notify system administrators and ISSOs when accounts are removed.
SV-203682r991567_ruleThe operating system must use cryptographic mechanisms to protect the integrity of audit tools.
SV-203683r958636_ruleThe operating system must automatically terminate a user session after inactivity time-outs have expired or at shutdown.
SV-203684r958638_ruleThe operating system must provide a logoff capability for user-initiated communications sessions when requiring user access authentication.
SV-203685r958640_ruleThe operating system must display an explicit logoff message to users indicating the reliable termination of authenticated communications sessions.
SV-203686r958672_ruleThe operating system must control remote access methods.
SV-203687r958674_ruleThe operating system must provide the capability to immediately disconnect or disable remote access to the operating system.
SV-203688r991568_ruleThe operating system must protect wireless access to and from the system using encryption.
SV-203689r991569_ruleThe operating system must protect wireless access to the system using authentication of users and/or devices.
SV-203690r958684_ruleThe operating system must audit all account enabling actions.
SV-203691r982207_ruleThe operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions.
SV-203692r958702_ruleThe operating system must allow operating system admins to pass information to any other operating system admin or user.
SV-203693r958702_ruleThe operating system must allow operating system admins to grant their privileges to other operating system admins.
SV-203694r958702_ruleThe operating system must allow operating system admins to change security attributes on users, the operating system, or the operating systems components.
SV-203695r958726_ruleThe operating system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.
SV-203696r958730_ruleThe operating system must prevent all software from executing at higher privilege levels than users executing the software.
SV-203697r958732_ruleThe operating system must audit the execution of privileged functions.
SV-203698r958736_ruleThe operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur.
SV-203699r971541_ruleThe operating system must provide the capability for assigned IMOs/ISSOs or designated SAs to change the auditing to be performed on all operating system components, based on all selectable event criteria in near real time.
SV-203700r958752_ruleThe operating system must allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility.
SV-203701r958754_ruleThe operating system must offload audit records onto a different system or media from the system being audited.
SV-203702r971542_ruleThe operating system must immediately notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity.
SV-203703r958758_ruleThe operating system must provide an immediate real-time alert to the SA and ISSO, at a minimum, of all audit failure events requiring real-time alerts.
SV-203704r958766_ruleThe operating system must provide an audit reduction capability that supports on-demand audit review and analysis.
SV-203705r958768_ruleThe operating system must provide an audit reduction capability that supports after-the-fact investigations of security incidents.
SV-203706r958770_ruleThe operating system must provide a report generation capability that supports on-demand audit review and analysis.
SV-203707r958772_ruleThe operating system must provide a report generation capability that supports on-demand reporting requirements.
SV-203708r958774_ruleThe operating system must provide a report generation capability that supports after-the-fact investigations of security incidents.
SV-203709r958776_ruleThe operating system must not alter original content or time ordering of audit records when it provides an audit reduction capability.
SV-203710r987795_ruleThe operating system must not alter original content or time ordering of audit records when it provides a report generation capability.
SV-203711r1038944_ruleThe operating system must, for networked systems, compare internal information system clocks at least every 24 hours with an authoritative time source.
SV-203712r982209_ruleThe operating system must synchronize internal information system clocks to the authoritative time source when the time difference is greater than one second.
SV-203713r958786_ruleThe operating system must record time stamps for audit records that meet a minimum granularity of one second for a minimum degree of precision.
SV-203714r958788_ruleThe operating system must record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT).
SV-203715r958790_ruleThe operating system must enforce dual authorization for movement and/or deletion of all audit information, when such movement or deletion is not part of an authorized automatic process.
SV-203716r982210_ruleThe operating system must prohibit user installation of system software without explicit privileged status.
SV-203717r958794_ruleThe operating system must notify designated personnel if baseline configurations are changed in an unauthorized manner.
SV-203718r958796_ruleThe operating system must enforce access restrictions.
SV-203719r982211_ruleThe operating system must audit the enforcement actions used to restrict access associated with changes to the system.
SV-203720r982212_ruleThe operating system must prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization.
SV-203721r958804_ruleThe operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage.
SV-203722r958808_ruleThe operating system must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs.
SV-203723r1050789_ruleThe operating system must require users to reauthenticate for privilege escalation.
SV-203724r1050790_ruleThe operating system must require users to reauthenticate when changing roles.
SV-203725r1050791_ruleThe operating system must require users to reauthenticate when changing authenticators.
SV-203727r982216_ruleThe operating system must implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access.
SV-203728r958816_ruleThe operating system must accept Personal Identity Verification (PIV) credentials.
SV-203729r958818_ruleThe operating system must electronically verify Personal Identity Verification (PIV) credentials.
SV-203730r958820_ruleThe operating system must authenticate peripherals before establishing a connection.
SV-203731r971545_ruleThe operating system must authenticate all endpoint devices before establishing a local, remote, and/or network connection using bidirectional authentication that is cryptographically based.
SV-203733r958828_ruleThe operating system must prohibit the use of cached authenticators after one day.
SV-203734r982217_ruleThe 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.
SV-203735r958846_ruleThe operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions.
SV-203736r958848_ruleThe operating system must implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions.
SV-203737r958850_ruleThe operating system must implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions.
SV-203738r958852_ruleThe operating system must verify remote disconnection at the termination of nonlocal maintenance and diagnostic sessions, when used for nonlocal maintenance sessions.
SV-203739r987791_ruleThe operating system must implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.
SV-203744r958868_ruleThe 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.
SV-203745r958870_ruleThe operating system must implement cryptographic mechanisms to prevent unauthorized modification of all information at rest on all operating system components.
SV-203746r958872_ruleThe operating system must implement cryptographic mechanisms to prevent unauthorized disclosure of all information at rest on all operating system components.
SV-203747r958902_ruleThe 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.
SV-203748r958908_ruleThe operating system must protect the confidentiality and integrity of transmitted information.
SV-203749r1117271_ruleThe 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).
SV-203750r958912_ruleThe operating system must maintain the confidentiality and integrity of information during preparation for transmission.
SV-203751r958914_ruleThe operating system must maintain the confidentiality and integrity of information during reception.
SV-203752r958926_ruleThe operating system must behave in a predictable and documented manner that reflects organizational and system objectives when invalid inputs are received.
SV-203753r958928_ruleThe operating system must implement non-executable data to protect its memory from unauthorized code execution.
SV-203754r958928_ruleThe operating system must implement address space layout randomization to protect its memory from unauthorized code execution.
SV-203755r958936_ruleThe operating system must remove all software components after updated versions have been installed.
SV-203756r958944_ruleThe operating system must verify correct operation of all security functions.
SV-203757r958946_ruleThe operating system must perform verification of the correct operation of security functions: upon system start-up and/or restart; upon command by a user with privileged access; and/or every 30 days.
SV-203758r958948_ruleThe operating system must shut down the information system, restart the information system, and/or notify the system administrator when anomalies in the operation of any security functions are discovered.
SV-203759r991570_ruleThe operating system must generate audit records when successful/unsuccessful attempts to access security objects occur.
SV-203760r991571_ruleThe operating system must generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur.
SV-203761r991572_ruleThe operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur.
SV-203762r991573_ruleThe operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur.
SV-203763r991574_ruleThe operating system must generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur.
SV-203764r991575_ruleThe operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur.
SV-203765r991576_ruleThe operating system must generate audit records when successful/unsuccessful attempts to delete security levels occur.
SV-203766r991577_ruleThe operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur.
SV-203767r991578_ruleThe operating system must generate audit records when successful/unsuccessful logon attempts occur.
SV-203768r991579_ruleThe operating system must generate audit records for privileged activities or other system-level access.
SV-203769r991580_ruleThe audit system must be configured to audit the loading and unloading of dynamic kernel modules.
SV-203770r991581_ruleThe operating system must generate audit records showing starting and ending time for user access to the system.
SV-203771r991582_ruleThe operating system must generate audit records when concurrent logons to the same account occur from different sources.
SV-203772r991583_ruleThe operating system must generate audit records when successful/unsuccessful accesses to objects occur.
SV-203773r991584_ruleThe operating system must generate audit records for all direct access to the information system.
SV-203774r991585_ruleThe operating system must generate audit records for all account creations, modifications, disabling, and termination events.
SV-203775r991586_ruleThe operating system must generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations.
SV-203776r1137699_ruleThe operating system must implement NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.
SV-203777r959008_ruleThe operating system must, at a minimum, off-load audit data from interconnected systems in real time and off-load audit data from standalone systems weekly.
SV-203778r991587_ruleThe operating system must prevent the use of dictionary words for passwords.
SV-203779r991588_ruleThe operating system must enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt.
SV-203780r991589_ruleThe operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs.
SV-203781r991590_ruleThe operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files.
SV-203782r991591_ruleThe operating system must not allow an unattended or automatic logon to the system.
SV-203783r991592_ruleThe operating system must limit the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders.
SV-203784r991593_ruleThe operating system must enable an application firewall, if available.
SV-252688r958358_ruleThe operating system must protect the confidentiality and integrity of communications with wireless peripherals.
SV-259333r1137708_ruleThe operating system must install security-relevant software updates within 30 days unless the time period is directed by an authoritative source (e.g., IAVM, CTOs, DTMs, STIGs).
SV-263650r982553_ruleThe operating system must disable accounts when the accounts are no longer associated to a user.
SV-263651r982555_ruleThe operating system must prohibit the use or connection of unauthorized hardware components.
SV-263652r982557_ruleThe operating system must implement multifactor authentication for local, network, and/or remote access to privileged accounts and/or nonprivileged accounts such that the device meets organization-defined strength of mechanism requirements.
SV-263653r982229_ruleThe operating system must, for password-based authentication, verify when users create or update passwords the passwords are not found on the list of commonly-used, expected, or compromised passwords in IA-5 (1) (a).
SV-263654r982232_ruleThe operating system must for password-based authentication, require immediate selection of a new password upon account recovery.
SV-263655r982235_ruleThe operating system must for password-based authentication, allow user selection of long passwords and passphrases, including spaces and all printable characters.
SV-263656r982238_ruleThe operating system must, for password-based authentication, employ automated tools to assist the user in selecting strong password authenticators.
SV-263657r982559_ruleThe operating system must accept only external credentials that are NIST-compliant.
SV-263658r982561_ruleThe operating system must monitor the use of maintenance tools that execute with increased privilege.
SV-263659r982563_ruleThe operating system must include only approved trust anchors in trust stores or certificate stores managed by the organization.
SV-263660r982565_ruleThe operating system must provide protected storage for cryptographic keys with organization-defined safeguards and/or hardware protected key store.
SV-263661r982567_ruleThe operating system must synchronize system clocks within and between systems or system components.
SV-278973r1137694_ruleThe operating system must separate user functionality (including user interface services) from operating system management functionality.
SV-278974r1137698_ruleThe operating system must enforce a role-based access control (RBAC) policy over defined subjects and objects.
SV-278975r1137702_ruleThe operating system must use a FIPS-validated cryptographic module to provision digital signatures.
SV-278976r1137705_ruleThe operating system must enforce attribute-based access control policy over defined subjects and objects based upon organization-defined attributes to assume access permissions.
SV-278977r1137711_ruleThe operating system must be a version supported by the vendor.