cyberstrikeus 2.2.3 Ensure talk client is not installed (Automated)
Profile
- Level 1 - Server
- Level 1 - Workstation
Description
The talk software makes it possible for users to send and receive messages across systems through a terminal session. The talk client, which allows initialization of talk sessions, is installed by the talk package.
Rationale
The software presents a security risk as it uses unencrypted protocols for communication.
Audit Procedure
Command Line
Run the following command to verify talk is not installed:
# dpkg-query -W -f='${binary:Package}\t${Status}\t${db:Status-Status}\n' talk
Verify talk is not installed.
Expected Result
talk package should not be installed.
Remediation
Command Line
Run the following command to remove talk:
# apt purge talk
Default Value
talk is not installed 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: T1203, T1543, T1543.002 | TA0006, TA0008 | M1041, M1042