The ALG must generate unique session identifiers using a FIPS 140-2 approved random number generator.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-54621	SRG-NET-000234-ALG-000116	SV-68867r1_rule		Medium

Description
Sequentially generated session IDs can be easily guessed by an attacker. Employing the concept of randomness in the generation of unique session identifiers helps to protect against brute-force attacks to determine future session identifiers. This requirement is applicable to ALGs that create and use sessions and session identifiers to control user communications. If an attacker can guess the session identifier, or can inject or manually insert session information, the valid user's application session can be compromised.

Description

Sequentially generated session IDs can be easily guessed by an attacker. Employing the concept of randomness in the generation of unique session identifiers helps to protect against brute-force attacks to determine future session identifiers. This requirement is applicable to ALGs that create and use sessions and session identifiers to control user communications. If an attacker can guess the session identifier, or can inject or manually insert session information, the valid user's application session can be compromised.

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

Details

Check Text ( C-55241r1_chk )
Verify the ALG generates unique session identifiers using a FIPS 140-2 approved random number generator. If the ALG does not generate unique session identifiers using a FIPS 140-2 approved random number generator, this is a finding.

Fix Text (F-59477r1_fix)
Configure ALG to generate unique session identifiers using a FIPS 140-2 approved random number generator.