cyberstrikeus 2.1.13 Ensure rsync services are not in use (Automated)
Profile
- Level 1 - Server
- Level 1 - Workstation
Description
The rsync service can be used to synchronize files between systems over network links.
Rationale
The rsync service presents a security risk as it uses unencrypted protocols for communication. Unless there is a need to run rsync as a daemon, it is recommended that the rsync service be disabled to reduce the remote attack surface.
Audit Procedure
Command Line
Run the following command to verify rsync is not installed:
# dpkg-query -W -f='${binary:Package}\t${Status}\t${db:Status-Status}\n' rsync
If installed, run:
# systemctl is-enabled rsync.service
# systemctl is-active rsync.service
Verify the service is not enabled and not active.
Expected Result
rsync should not be installed as a service, or if installed, the service should be stopped and masked.
Remediation
Command Line
Run the following commands to stop, mask, and purge rsync:
# systemctl stop rsync.service
# systemctl mask rsync.service
# apt purge rsync
Default Value
rsync may be installed but the daemon is not enabled by default.
References
- NIST SP 800-53 Rev. 5: CM-7
CIS Controls
| Controls Version | Control | IG 1 | IG 2 | IG 3 |
|---|---|---|---|---|
| v8 | 4.8 Uninstall or Disable Unnecessary Services on Enterprise Assets and Software | x | x | |
| v7 | 9.2 Ensure Only Approved Ports, Protocols and Services Are Running | x | x |
MITRE ATT&CK Mappings: T1105, T1203, T1210, T1543, T1543.002, T1570 | TA0008 | M1042