Check: AS24-W2-000500
Apache Server 2.4 Windows Site STIG:
AS24-W2-000500
(in versions v2 r1 through v1 r0.1)
Title
The Apache web server must generate unique session identifiers that cannot be reliably reproduced. (Cat II impact)
Discussion
Communication between a client and the web server is done using the HTTP protocol, but HTTP is a stateless protocol. To maintain a connection or session, a web server will generate a session identifier (ID) for each client session when the session is initiated. The session ID allows the web server to track a user session and, in many cases, the user, if the user previously logged on to a hosted application. By being able to guess session IDs, an attacker can easily perform a man-in-the-middle attack. To truly generate random session identifiers that cannot be reproduced, the web server session ID generator, when used twice with the same input criteria, must generate an unrelated random ID. The session ID generator also needs to be a FIPS 140-2 approved generator. Satisfies: SRG-APP-000224-WSR-000136, SRG-APP-000224-WSR-000137
Check Content
Review the <'INSTALLED PATH'>\conf\httpd.conf file. Verify the "mod_unique_id" is loaded. If it does not exist, this is a finding.
Fix Text
Edit the <'INSTALLED PATH'>\conf\httpd.conf file and load the "mod_unique_id" module. Restart Apache.
Additional Identifiers
Rule ID: SV-214378r397735_rule
Vulnerability ID: V-214378
Group Title: SRG-APP-000224-WSR-000136
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001188 |
The information system generates unique session identifiers for each session with organization-defined randomness requirements. |
Controls
Number | Title |
---|---|
SC-23 (3) |
Unique Session Identifiers With Randomization |