Only authenticated system administrators or the designated PKI Sponsor for an Automation Controller NGINX web server must have access to any Automation Controller NGINX web server's private key.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-256953	APWS-AT-000400	SV-256953r903525_rule		Medium

Description
Each Automation Controller NGINX web server's private key is used to prove the identity of the server to clients and securely exchange the shared secret key used to encrypt communications between the Automation Controller NGINX web server and clients. By gaining access to the private key, an attacker can pretend to be an authorized server and decrypt the SSL traffic between a client and the Automation Controller NGINX web server.

Description

Each Automation Controller NGINX web server's private key is used to prove the identity of the server to clients and securely exchange the shared secret key used to encrypt communications between the Automation Controller NGINX web server and clients. By gaining access to the private key, an attacker can pretend to be an authorized server and decrypt the SSL traffic between a client and the Automation Controller NGINX web server.

STIG	Date
Red Hat Ansible Automation Controller Web Server Security Technical Implementation Guide	2023-03-15

Details

Check Text ( C-60628r903525_chk )
As a System Administrator for each Automation Controller NGINX web server host, verify the location of the NGINX configuration: NGINXCONF=`nginx -V 2>&1 \| tr ' ' '\n' \| sed -ne '/conf-path/{s/.conf-path=\(.\)/\1/;p}' ` TOWER_KEY=`sed -n 's/^\sssl_certificate_key\s\(.*\);/\1/p' $NGINXCONF` stat -c "%a %U %G" $TOWER_KEY\| grep "600 root awx" \|\| echo "FAILED" If "FAILED" is displayed, this is a finding.

Check Text ( C-60628r903525_chk )

As a System Administrator for each Automation Controller NGINX web server host, verify the location of the NGINX configuration:

NGINXCONF=`nginx -V 2>&1 | tr ' ' '\n' | sed -ne '/conf-path/{s/.*conf-path=$.*$/\1/;p}' `
TOWER_KEY=`sed -n 's/^\s*ssl_certificate_key\s*$.*$;/\1/p' $NGINXCONF`
stat -c "%a %U %G" $TOWER_KEY| grep "600 root awx" || echo "FAILED"

If "FAILED" is displayed, this is a finding.

Fix Text (F-60570r902372_fix)
As a System Administrator for each Automation Controller NGINX web server host, set the permissions: NGINXCONF=`nginx -V 2>&1 \| tr ' ' '\n' \| sed -ne '/conf-path/{s/.conf-path=$.$/\1/;p}' ` TOWER_KEY=`sed -n 's/^\sssl_certificate_key\s$.*$;/\1/p' $NGINXCONF` sudo chown root:awx $TOWER_KEY sudo chmod 600 $TOWER_KEY