Web server session IDs must be sent to the client using SSL/TLS.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-206435	SRG-APP-000439	SRG-APP-000439-WSR-000152	SV-206435r961632_rule	2025-02-12	4

Description
The HTTP protocol is a stateless protocol. To maintain a session, a session identifier is used. The session identifier is a piece of data that is used to identify a session and a user. If the session identifier is compromised by an attacker, the session can be hijacked. By encrypting the session identifier, the identifier becomes more difficult for an attacker to hijack, decrypt, and use before the session has expired.

Description

The HTTP protocol is a stateless protocol. To maintain a session, a session identifier is used. The session identifier is a piece of data that is used to identify a session and a user. If the session identifier is compromised by an attacker, the session can be hijacked. By encrypting the session identifier, the identifier becomes more difficult for an attacker to hijack, decrypt, and use before the session has expired.

ℹ️ Check
Review the web server documentation and deployed configuration to determine whether the session identifier is being sent to the client encrypted. If the web server does not encrypt the session identifier, this is a finding.

✔️ Fix
Configure the web server to encrypt the session identifier for transmission to the client.