The ALG must reveal error messages only to the ISSO, ISSM, and SCA.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-54651	SRG-NET-000402-ALG-000130	SV-68897r1_rule		Medium

Description
Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can give configuration details about the network element. Limiting access to system logs and administrative consoles to authorized personnel will help to mitigate this risk. However, user feedback and error messages should also be restricted by type and content in accordance with security best practices (e.g., ICMP messages).

Description

Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can give configuration details about the network element. Limiting access to system logs and administrative consoles to authorized personnel will help to mitigate this risk. However, user feedback and error messages should also be restricted by type and content in accordance with security best practices (e.g., ICMP messages).

STIG	Date
Application Layer Gateway Security Requirements Guide	2014-11-03

Details

Check Text ( C-55271r1_chk )
Verify the ALG reveals error messages only to the ISSO, ISSM, and SCA. If the ALG does not reveal error messages only to the ISSO, ISSM, and SCA, this is a finding.

Fix Text (F-59507r1_fix)
Configure the ALG to reveal error messages only to the ISSO, ISSM, and SCA.