SLEM 5 must disable the USB mass storage kernel module.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-261347 | SRG-OS-000378-GPOS-00163 | SLEM-05-291015 | SV-261347r996498_rule | 2024-06-04 | 1 |
| Description |
|---|
| Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include but are not limited to such devices as flash drives, external storage, and printers. |
| ℹ️ Check |
|---|
| Verify SLEM 5 does not automount USB mass storage devices when connected to the host with the following command: > grep usb-storage /etc/modprobe.d/50-blacklist.conf blacklist usb-storage If the line is commented out or the line is missing, this is a finding. |
| ✔️ Fix |
|---|
| Configure SLEM 5 to prevent USB mass storage devices from automounting when connected to the host. Add or modify the following line in the "/etc/modprobe.d/50-blacklist.conf" file: blacklist usb-storage |