+SC-18 Mobile Code
---+SC-18(01) Identify Unacceptable Code and Take Corrective Actions
---+SC-18(02) Acquisition, Development, and Use
---+SC-18(03) Prevent Downloading and Execution
---+SC-18(04) Prevent Automatic Execution
---+SC-18(05) Allow Execution Only in Confined Environments

SC-18 Mobile Code

Control

  1. Define acceptable and unacceptable mobile code and mobile code technologies; and
  2. Authorize, monitor, and control the use of mobile code within the system.

Discussion

Mobile code includes any program, application, or content that can be transmitted across a network (e.g., embedded in an email, document, or website) and executed on a remote system. Decisions regarding the use of mobile code within organizational systems are based on the potential for the code to cause damage to the systems if used maliciously. Mobile code technologies include Java applets, JavaScript, HTML5, WebGL, and VBScript. Usage restrictions and implementation guidelines apply to both the selection and use of mobile code installed on servers and mobile code downloaded and executed on individual workstations and devices, including notebook computers and smart phones. Mobile code policy and procedures address specific actions taken to prevent the development, acquisition, and introduction of unacceptable mobile code within organizational systems, including requiring mobile code to be digitally signed by a trusted source.

Assessment Objective

    1. acceptable mobile code is defined;
    2. unacceptable mobile code is defined;
    3. acceptable mobile code technologies are defined;
    4. unacceptable mobile code technologies are defined;
    1. the use of mobile code is authorized within the system;
    2. the use of mobile code is monitored within the system;
    3. the use of mobile code is controlled within the system.

Assessment Method

Examine

System and communications protection policy procedures addressing mobile code mobile code implementation policy and procedures list of acceptable mobile code and mobile code technologies list of unacceptable mobile code and mobile technologies authorization records system monitoring records system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities organizational personnel with responsibilities for managing mobile code

1. Panoramica

SC-18(01) Identify Unacceptable Code and Take Corrective Actions

Control

Identify [Assignement: unacceptable mobile code] and take [Assignement: corrective actions].

Discussion

Corrective actions when unacceptable mobile code is detected include blocking, quarantine, or alerting administrators. Blocking includes preventing the transmission of word processing files with embedded macros when such macros have been determined to be unacceptable mobile code.

Assessment Objective

  1. [Assignement: unacceptable mobile code] is identified;
  2. [Assignement: corrective actions] are taken if unacceptable mobile code is identified.

Assessment Method

Examine

System and communications protection policy procedures addressing mobile code mobile code usage restrictions mobile code implementation policy and procedures system design documentation system configuration settings and associated documentation list of unacceptable mobile code list of corrective actions to be taken when unacceptable mobile code is identified system monitoring records system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities system developer organizational personnel with responsibilities for managing mobile code
SC-18(02) Acquisition, Development, and Use

Control

Verify that the acquisition, development, and use of mobile code to be deployed in the system meets [Assignement: mobile code requirements].

Discussion

None.

Assessment Objective

  1. the acquisition of mobile code to be deployed in the system meets [Assignement: mobile code requirements];
  2. the development of mobile code to be deployed in the system meets [Assignement: mobile code requirements];
  3. the use of mobile code to be deployed in the system meets [Assignement: mobile code requirements].

Assessment Method

Examine

System and communications protection policy procedures addressing mobile code mobile code requirements mobile code usage restrictions mobile code implementation policy and procedures acquisition documentation acquisition contracts for system, system component, or system service system development life cycle documentation system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities organizational personnel with responsibilities for managing mobile code organizational personnel with acquisition and contracting responsibilities
SC-18(03) Prevent Downloading and Execution

Control

Prevent the download and execution of [Assignement: unacceptable mobile code].

Discussion

None.

Assessment Objective

  1. the download of [Assignement: unacceptable mobile code] is prevented;
  2. the execution of [Assignement: unacceptable mobile code] is prevented.

Assessment Method

Examine

System and communications protection policy procedures addressing mobile code mobile code usage restrictions mobile code implementation policy and procedures system design documentation system configuration settings and associated documentation system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities system developer organizational personnel with responsibilities for managing mobile code
SC-18(04) Prevent Automatic Execution

Control

Prevent the automatic execution of mobile code in [Assignement: software applications] and enforce [Assignement: actions] prior to executing the code.

Discussion

Actions enforced before executing mobile code include prompting users prior to opening email attachments or clicking on web links. Preventing the automatic execution of mobile code includes disabling auto-execute features on system components that employ portable storage devices, such as compact discs, digital versatile discs, and universal serial bus devices.

Assessment Objective

  1. the automatic execution of mobile code in [Assignement: software applications] is prevented;
  2. [Assignement: actions] are enforced prior to executing mobile code.

Assessment Method

Examine

System and communications protection policy procedures addressing mobile code mobile code usage restrictions mobile code implementation policy and procedures system design documentation system configuration settings and associated documentation list of software applications in which the automatic execution of mobile code must be prohibited list of actions required before execution of mobile code system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities system developer organizational personnel with responsibilities for managing mobile code
SC-18(05) Allow Execution Only in Confined Environments

Control

Allow execution of permitted mobile code only in confined virtual machine environments.

Discussion

Permitting the execution of mobile code only in confined virtual machine environments helps prevent the introduction of malicious code into other systems and system components.

Assessment Objective

execution of permitted mobile code is allowed only in confined virtual machine environments.

Assessment Method

Examine

System and communications protection policy procedures addressing mobile code mobile code usage allowances mobile code usage restrictions system design documentation system configuration settings and associated documentation list of confined virtual machine environments in which the execution of organizationally acceptable mobile code is allowed system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities system developer organizational personnel with responsibilities for managing mobile code

1.1 Riferimenti

1.2 Requisiti identificati

1.3 Regolamentazioni correlate

2. Requisiti identificati

Requisiti

3. Regolamentazioni correlate

Regolamentazioni

Ticket collegati

Collegamenti
is blocked by SC-18 Mobile Code – Assessment Procedure
is blocked by Mobile Code