Global initialization files must contain the mesg -n or mesg n commands.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-825 | GEN001780 | SV-63875r1_rule | Low |
| Description |
|---|
| If the "mesg -n" or "mesg n" command is not placed into the system profile, messaging can be used to cause a Denial of Service attack. |
| STIG | Date |
|---|---|
| Oracle Linux 5 Security Technical Implementation Guide | 2020-02-25 |
Details
| Check Text ( C-52413r1_chk ) |
|---|
| Check global initialization files for the presence of "mesg -n" or "mesg n". Procedure: # grep "mesg" etc/bashrc /etc/csh.cshrc /etc/csh.login /etc/csh.logout /etc/environment /etc/ksh.kshrc /etc/profile /etc/suid_profile /etc/profile.d/* If no global initialization files contain "mesg -n" or "mesg n", this is a finding. |
| Fix Text (F-54449r1_fix) |
|---|
| Edit /etc/profile or another global initialization script, and add the "mesg -n" command. |