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The system must not have the talk or ntalk services active.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-29510 | GEN009260 | SV-38714r1_rule | ECSC-1 | Medium |
| Description |
|---|
| The talk and ntalk commands allow users on the same or different systems on converse. The talk daemons are started from the inetd process and run as root. These unnecessary processes increase the attack vector of the system and may cause Denial of Service by scrambling the users display. |
| STIG | Date |
|---|---|
| AIX 5.3 SECURITY TECHNICAL IMPLEMENTATION GUIDE | 2014-10-03 |
Details
| Check Text ( C-37810r1_chk ) |
|---|
| Check the /etc/inetd.conf file for talk and ntalk services. #grep talk /etc/inetd.conf | grep -v \# If any TCP or UDP talk or ntalk services are enabled, this is a finding. |
| Fix Text (F-33068r1_fix) |
|---|
| Edit /etc/inetd.conf and comment out TCP and UDP for the talk service. Edit /etc/inetd.conf and comment out TCP and UDP for the ntalk service. Restart the inetd service. # refresh -s inetd |