Microsoft Android 11 COBO Security Technical Implementation Guide

Description

This Security Technical Implementation Guide is published as a tool to improve the security of Department of Defense (DOD) information systems. The requirements are derived from the National Institute of Standards and Technology (NIST) 800-53 and related documents. Comments or proposed revisions to this document should be sent via email to the following address: [email protected]

Details

Version / Release: V1R1

Published: 2022-11-14

Updated At: 2023-01-25 00:41:57

Actions

Download

Filter

Findings
Severity Open Not Reviewed Not Applicable Not a Finding
Overall 0 0 0 0
Low 0 0 0 0
Medium 0 0 0 0
High 0 0 0 0
Drop CKL or SCAP (XCCDF) results here.

    Vuln Rule Version CCI Severity Title Description Status Finding Details Comments
    SV-255167r870642_rule MSFT-11-000100 CCI-000205 MEDIUM Microsoft Android 11 must be configured to enforce a minimum password length of six characters. Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. The ability to crack a password is a function of how many attempts an adversary is permitted, how quickly an adversary can do each attempt, an
    SV-255168r870644_rule MSFT-11-000200 CCI-000366 MEDIUM Microsoft Android 11 must be configured to not allow passwords that include more than two repeating or sequential characters. Password strength is a measure of the effectiveness of a password in resisting guessing and brute force attacks. Passwords that contain repeating or sequential characters are significantly easier to guess than those that do not contain repeating or sequen
    SV-255169r877006_rule MSFT-11-000300 CCI-000057 MEDIUM Microsoft Android 11 must be configured to enable a screen-lock policy that will lock the display after a period of inactivity. The screen-lock timeout helps protect the device from unauthorized access. Devices without a screen-lock timeout provide an opportunity for adversaries who gain physical access to the mobile device through loss, theft, etc. Such devices are much more like
    SV-255170r870650_rule MSFT-11-000400 CCI-000057 MEDIUM Microsoft Android 11 must be configured to lock the display after 15 minutes (or less) of inactivity. The screen lock timeout must be set to a value that helps protect the device from unauthorized access. Having a too-long timeout would increase the window of opportunity for adversaries who gain physical access to the mobile device through loss, theft, et
    SV-255171r870653_rule MSFT-11-000500 CCI-000044 MEDIUM Microsoft Android 11 must be configured to not allow more than 10 consecutive failed authentication attempts. The more attempts an adversary has to guess a password, the more likely the adversary will enter the correct password and gain access to resources on the device. Setting a limit on the number of attempts mitigates this risk. Setting the limit at 10 or les
    SV-255172r870656_rule MSFT-11-000800 CCI-000366 MEDIUM Microsoft Android 11 must be configured to enforce an application installation policy by specifying one or more authorized application repositories, including [selection: DOD-approved commercial app repository, EMM server, mobile application store]. Forcing all applications to be installed from authorized application repositories can prevent unauthorized and malicious applications from being installed and executed on mobile devices. Allowing such installations and executions could cause a compromise
    SV-255173r870659_rule MSFT-11-001000 CCI-001764 MEDIUM Microsoft Android 11 must be configured to enforce an application installation policy by specifying an application allow list that restricts applications by the following characteristics: [selection: list of digital signatures, cryptographic hash values, names, application version]. The application allow list, in addition to controlling the installation of applications on the MD, must control user access/execution of all core and preinstalled applications, or the MD must provide an alternate method of restricting user access/executio
    SV-255174r870662_rule MSFT-11-001100 CCI-000366 MEDIUM Microsoft Android 11 allow list must be configured to not include applications with the following characteristics: - Back up MD data to non-DOD cloud servers (including user and application access to cloud backup services); - Transmit MD diagnostic data to non-DOD servers; - Voice assistant application if available when MD is locked; - Voice dialing application if available when MD is locked; - Allows synchronization of data or applications between devices associated with user; and - Allows unencrypted ( Requiring all authorized applications to be in an application allow list prevents the execution of any applications (e.g., unauthorized, malicious) that are not part of the allow list. Failure to configure an application allow list properly could allow un
    SV-255175r870665_rule MSFT-11-001400 CCI-000366 LOW Microsoft Android 11 must be configured to disable Bluetooth or configured via User Based Enforcement (UBE) to allow Bluetooth for only Headset Profile (HSP), HandsFree Profile (HFP), and Serial Port Profile (SPP). Some Bluetooth profiles provide the capability for remote transfer of sensitive DOD data without encryption or otherwise do not meet DOD IT security policies and therefore should be disabled. SFR ID: FMT_SMF_EXT.1.1 #18h
    SV-255176r870668_rule MSFT-11-001600 CCI-000060 MEDIUM Microsoft Android 11 must be configured to not display the following (work profile) notifications when the device is locked: [selection: - Email notifications - Calendar appointments - Contact associated with phone call notification - Text message notification - Other application-based notifications - All notifications]. Many mobile devices display notifications on the lock screen so that users can obtain relevant information in a timely manner without having to frequently unlock the phone to determine if there are new notifications. However, in many cases, these notifica
    SV-255177r870671_rule MSFT-11-002000 CCI-001199 HIGH Microsoft Android 11 must be configured to enable encryption for data at rest on removable storage media or alternately, the use of removable storage media must be disabled. The Microsoft Android device must ensure the data being written to the mobile device's removable media is protected from unauthorized access. If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions
    SV-255178r870672_rule MSFT-11-002300 CCI-000366 MEDIUM Microsoft Android 11 must be configured to disable trust agents. Note: This requirement is not applicable (NA) for specific biometric authentication factors included in the product's Common Criteria evaluation. Trust agents allow a user to unlock a mobile device without entering a passcode when the mobile device is, for example, connected to a user-selected Bluetooth device or in a user-selected location. This technology would allow unauthorized users to have ac
    SV-255179r870675_rule MSFT-11-002800 CCI-000381 MEDIUM Microsoft Android 11 must be configured to disable developer modes. Developer modes expose features of the Microsoft Android device that are not available during standard operation. An adversary may leverage a vulnerability inherent in a developer mode to compromise the confidentiality, integrity, and availability of DOD
    SV-255180r870678_rule MSFT-11-003400 CCI-000048 LOW Microsoft Android 11 must be configured to display the DOD advisory warning message at start-up or each time the user unlocks the device. The Microsoft Android 11 is required to display the DOD-approved system use notification message or banner before granting access to the system that provides privacy and security notices consistent with applicable federal laws, Executive Orders, directive
    SV-255181r870680_rule MSFT-11-003500 CCI-002546 MEDIUM Microsoft Android 11 must be configured to disable USB mass storage mode. USB mass storage mode enables the transfer of data and software from one device to another. This software can include malware. When USB mass storage is enabled on a mobile device, it becomes a potential vector for malware and unauthorized data exfiltratio
    SV-255182r870682_rule MSFT-11-003700 CCI-001090 MEDIUM Microsoft Android 11 must be configured to not allow backup of [all applications, configuration data] to locally connected systems. Data on mobile devices is protected by numerous mechanisms, including user authentication, access control, and cryptography. When the data is backed up to an external system (either locally connected or cloud-based), many if not all of these mechanisms ar
    SV-255183r870685_rule MSFT-11-003900 CCI-001090 MEDIUM Microsoft Android 11 must be configured to not allow backup of all applications and configuration data to remote systems. Backups to remote systems (including cloud backup) can leave data vulnerable to breach on the external systems, which often offer less protection than the Microsoft Android device. Where the remote backup involves a cloud-based solution, the backup capabi
    SV-255184r870687_rule MSFT-11-004700 CCI-000366 MEDIUM Microsoft Android 11 must be configured to disable multi-user modes. Multi-user mode allows multiple users to share a mobile device by providing a degree of separation between user data. To date, no mobile device with multi-user mode features meets DOD requirements for access control, data separation, and non-repudiation f
    SV-255185r870803_rule MSFT-11-005200 CCI-002235 LOW The mobile operating system must allow only the Administrator (MDM) to perform the following management function: Enable/disable location services. If a user is able to configure the security setting, the user could inadvertently or maliciously set it to a value that poses unacceptable risk to DOD information systems. An adversary could exploit vulnerabilities created by the weaker configuration to c
    SV-255186r870805_rule MSFT-11-005400 CCI-000370 MEDIUM Microsoft Android 11 must allow the Administrator (EMM) to perform the following management function: Wipe Enterprise data. When a user's device is lost or stolen, it is useful to remotely wipe it as soon as possible to avoid loss of DOD sensitive information. The Administrator must have the capability to force a wipe on a lost or stolen device to reduce the risk of compromise
    SV-255187r870789_rule MSFT-11-005505 CCI-000366 MEDIUM Microsoft Android 11 must be configured to enable audit logging. Audit logs enable monitoring of security-relevant events and subsequent forensics when breaches occur. To be useful, Administrators must have the ability to view the audit logs. SFR ID: FMT_SMF_EXT.1.1 #32
    SV-255188r870696_rule MSFT-11-006100 CCI-000169 MEDIUM Microsoft Android 11 must be configured to generate audit records for the following auditable events: Detected integrity violations. Audit logs enable monitoring of security-relevant events and subsequent forensics when breaches occur. They help identify attacks so that breaches can either be prevented or limited in their scope. They facilitate analysis to improve performance and secur
    SV-255189r870697_rule MSFT-11-008700 CCI-000366 MEDIUM Microsoft Android 11 users must complete required training. The security posture of Android devices requires the device user to configure several required policy rules on their device. User-Based Enforcement (UBE) is required for these controls. In addition, if the Authorizing Official (AO) has approved the use of
    SV-255190r870791_rule MSFT-11-008800 CCI-000366 MEDIUM Microsoft Android 11 must be configured to enforce that Wi-Fi Sharing is disabled. Wi-Fi Sharing is an optional configuration of Wi-Fi Tethering/Mobile Hotspot, which allows the device to share its Wi-Fi connection with other wirelessly connected devices instead of its mobile (cellular) connection. Wi-Fi Sharing grants the "other" de
    SV-255191r870793_rule MSFT-11-009000 CCI-000366 MEDIUM Microsoft Android 11 must have the DOD root and intermediate PKI certificates installed. DOD root and intermediate PKI certificates are used to verify the authenticity of PKI certificates of users and web services. If the root and intermediate certificates are not available, an adversary could falsely sign a certificate in such a way that it
    SV-255192r870795_rule MSFT-11-009100 CCI-000366 MEDIUM Microsoft Android 11 must allow only the administrator (EMM) to install/remove DOD root and intermediate PKI certificates. DOD root and intermediate PKI certificates are used to verify the authenticity of PKI certificates of users and web services. If the user is allowed to remove root and intermediate certificates, the user could allow an adversary to falsely sign a certific
    SV-255193r870797_rule MSFT-11-009200 CCI-000366 MEDIUM The Microsoft Android 11 Work Profile must be configured to prevent users from adding personal email accounts to the work email app. If the user is able to add a personal email account (POP3, IMAP, EAS) to the work email app, it could be used to forward sensitive DOD data to unauthorized recipients. Restricting email account addition to the administrator or restricting email account ad
    SV-255194r870702_rule MSFT-11-009400 CCI-000366 MEDIUM Microsoft Android 11 Work Profile must be configured to enforce the system application disable list. The system application disable list controls user access to/execution of all core and preinstalled applications. Core application: Any application integrated into Microsoft Android 11 by Google. Preinstalled application: Additional noncore applicati
    SV-255195r870809_rule MSFT-11-009800 CCI-000366 MEDIUM Microsoft Android 11 Work Profile must be configured to disable automatic completion of work space internet browser text input. The autofill functionality in the web browser allows the user to complete a form that contains sensitive information, such as personally identifiable information (PII), without previous knowledge of the information. By allowing the use of autofill functio
    SV-255196r870704_rule MSFT-11-010000 CCI-000366 MEDIUM Microsoft Android 11 Work Profile must be configured to disable the autofill services. The autofill services allow the user to complete text inputs that could contain sensitive information, such as personally identifiable information (PII), without previous knowledge of the information. By allowing the use of autofill services, an adversary
    SV-255197r870799_rule MSFT-11-010200 CCI-000366 MEDIUM Microsoft Android 11 must be configured to disallow configuration of date and time. Determining the correct time a particular application event occurred on a system is critical when conducting forensic analysis and investigating system events. Periodically synchronizing internal clocks with an authoritative time source is necessary to
    SV-255198r870801_rule MSFT-11-010800 CCI-000366 HIGH Microsoft Android 11 devices must have the latest available Microsoft Android 11 operating system installed. Required security features are not available in earlier operating system versions. In addition, there may be known vulnerabilities in earlier versions. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-255199r870707_rule MSFT-11-011000 CCI-000366 LOW Microsoft Android 11 devices must be configured to disable the use of third-party keyboards. Many third-party keyboard applications are known to contain malware. SFR ID: FMT_SMF_EXT.1.1 #47
    SV-255200r870708_rule MSFT-11-011100 CCI-000366 LOW Microsoft Android 11 devices must be configured to enable Common Criteria Mode (CC Mode). The CC Mode feature is a superset of other features and behavioral changes that are mandatory MDFPP requirements. If CC Mode is not implemented the device will not be operating in the NIAP-certified compliant CC Mode of operation. CC Mode implements the