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Description
The talk package contains the client program for the
Internet talk protocol, which allows the user to chat with other users on
different systems. Talk is a communication program which copies lines from one
terminal to the terminal of another user.
The talk package can be removed with the following command:
Rationale
The talk software presents a security risk as it uses unencrypted protocols
for communications. Removing the talk package decreases the
risk of the accidental (or intentional) activation of talk client program.
Shell script
The following script can be run on the host to remediate the issue.
#!/bin/bash
# CAUTION: This remediation script will remove talk
# from the system, and may remove any packages
# that depend on talk. Execute this
# remediation AFTER testing on a non-production
# system!
DEBIAN_FRONTEND=noninteractive apt-get remove -y "talk"
Ansible playbook
The following playbook can be run with Ansible to remediate the issue.
- name: Ensure talk is removed
package:
name: talk
state: absent
tags:
- PCI-DSSv4-2.2.4
- disable_strategy
- low_complexity
- low_disruption
- medium_severity
- no_reboot_needed
- package_talk_removed
