+SC-28 Protection of Information at Rest
---+SC-28(01) Cryptographic Protection
---+SC-28(02) Offline Storage
---+SC-28(03) Cryptographic Keys

SC-28 Protection of Information at Rest

Control

Protect the [Selection(one-or-more): confidentiality; integrity] of the following information at rest: [Assignement: information at rest].

Discussion

Information at rest refers to the state of information when it is not in process or in transit and is located on system components. Such components include internal or external hard disk drives, storage area network devices, or databases. However, the focus of protecting information at rest is not on the type of storage device or frequency of access but rather on the state of the information. Information at rest addresses the confidentiality and integrity of information and covers user information and system information. System-related information that requires protection includes configurations or rule sets for firewalls, intrusion detection and prevention systems, filtering routers, and authentication information. Organizations may employ different mechanisms to achieve confidentiality and integrity protections, including the use of cryptographic mechanisms and file share scanning. Integrity protection can be achieved, for example, by implementing write-once-read-many (WORM) technologies. When adequate protection of information at rest cannot otherwise be achieved, organizations may employ other controls, including frequent scanning to identify malicious code at rest and secure offline storage in lieu of online storage.

Assessment Objective

the [Selection(one-or-more): confidentiality; integrity] of [Assignement: information at rest] is/are protected.

Assessment Method

Examine

System and communications protection policy procedures addressing the protection of information at rest system design documentation system configuration settings and associated documentation cryptographic mechanisms and associated configuration documentation list of information at rest requiring confidentiality and integrity protections system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities system developer

1. Přehled

SC-28(01) Cryptographic Protection

Control

Implement cryptographic mechanisms to prevent unauthorized disclosure and modification of the following information at rest on [Assignement: system components or media]: [Assignement: information].

Discussion

The selection of cryptographic mechanisms is based on the need to protect the confidentiality and integrity of organizational information. The strength of mechanism is commensurate with the security category or classification of the information. Organizations have the flexibility to encrypt information on system components or media or encrypt data structures, including files, records, or fields.

Assessment Objective

  1. cryptographic mechanisms are implemented to prevent unauthorized disclosure of [Assignement: information] at rest on [Assignement: system components or media];
  2. cryptographic mechanisms are implemented to prevent unauthorized modification of [Assignement: information] at rest on [Assignement: system components or media].

Assessment Method

Examine

System and communications protection policy procedures addressing the protection of information at rest system design documentation system configuration settings and associated documentation cryptographic mechanisms and associated configuration documentation system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities system developer
SC-28(02) Offline Storage

Control

Remove the following information from online storage and store offline in a secure location: [Assignement: information].

Discussion

Removing organizational information from online storage to offline storage eliminates the possibility of individuals gaining unauthorized access to the information through a network. Therefore, organizations may choose to move information to offline storage in lieu of protecting such information in online storage.

Assessment Objective

  1. [Assignement: information] is removed from online storage;
  2. [Assignement: information] is stored offline in a secure location.

Assessment Method

Examine

System and communications protection policy procedures addressing the protection of information at rest system design documentation system configuration settings and associated documentation cryptographic mechanisms and associated configuration documentation offline storage locations for information at rest system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities
SC-28(03) Cryptographic Keys

Control

Provide protected storage for cryptographic keys [Selection: {{ insert: param, sc-28.03_odp.02 }} ; hardware-protected key store].

Discussion

A Trusted Platform Module (TPM) is an example of a hardware-protected data store that can be used to protect cryptographic keys.

Assessment Objective

protected storage for cryptographic keys is provided using [Selection: {{ insert: param, sc-28.03_odp.02 }} ; hardware-protected key store].

Assessment Method

Examine

System and communications protection policy procedures addressing the protection of information at rest system design documentation system configuration settings and associated documentation cryptographic mechanisms and associated configuration documentation system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities

1.1 Odkazy

1.2 Identifikované požadavky

1.3 Související regulace

2. Identifikované požadavky

Požadavky

3. Související regulace

Regulace

Propojené úkoly

Vazby
is blocked by SC-28 Protection of Information at Rest – Assessment Procedure
is blocked by Encrypting Data At Rest
is blocked by Endpoint Protection Mechanisms