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OL 8 wireless network adapters must be disabled.


Finding ID Version Rule ID IA Controls Severity
V-248842 OL08-00-040110 SV-248842r853849_rule Medium
Without protection of communications with wireless peripherals, confidentiality and integrity may be compromised because unprotected communications can be intercepted and read, altered, or used to compromise the OL 8 operating system. This requirement applies to wireless peripheral technologies (e.g., wireless mice, keyboards, displays, etc.) used with OL 8 systems. Wireless peripherals (e.g., Wi-Fi/Bluetooth/IR keyboards, mice, and pointing devices and Near Field Communications [NFC]) present a unique challenge by creating an open, unsecured port on a computer. Wireless peripherals must meet DoD requirements for wireless data transmission and be approved for use by the Authorizing Official (AO). Although some wireless peripherals, such as mice and pointing devices, do not ordinarily carry information that need to be protected, modification of communications with these wireless peripherals may be used to compromise the OL 8 operating system. Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of communications with wireless peripherals can be accomplished by physical means (e.g., employing physical barriers to wireless radio frequencies) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, logical means (cryptography) do not have to be employed, and vice versa. If the wireless peripheral is only passing telemetry data, encryption of the data may not be required. Satisfies: SRG-OS-000299-GPOS-00117, SRG-OS-000300-GPOS-00118, SRG-OS-000481-GPOS-000481
Oracle Linux 8 Security Technical Implementation Guide 2022-12-06


Check Text ( C-52276r780090_chk )
Verify there are no wireless interfaces configured on the system with the following command.

Note: This requirement is not applicable for systems that do not have physical wireless network radios.

$ sudo nmcli device status

virbr0 bridge connected virbr0
wlp7s0 wifi connected wifiSSID
enp6s0 ethernet disconnected --
p2p-dev-wlp7s0 wifi-p2p disconnected --
lo loopback unmanaged --
virbr0-nic tun unmanaged --

If a wireless interface is configured and has not been documented and approved by the Information System Security Officer (ISSO), this is a finding.
Fix Text (F-52230r780091_fix)
Configure the system to disable all wireless network interfaces with the following command:

$ sudo nmcli radio all off