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The VPN Gateway must recognize only system-generated session identifiers.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-207225SRG-NET-000233-VPN-000800SV-207225r608988_ruleCCI-001664medium
Description
VPN gateways (depending on function) utilize sessions and session identifiers to control application behavior and user access. 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. Unique session IDs address man-in-the-middle attacks, including session hijacking or insertion of false information into a session. If the attacker is unable to identify or guess the session information related to pending application traffic, they will have more difficulty in hijacking the session or otherwise manipulating valid sessions. This requirement focuses on communications protection for the application session rather than for the network packet. This requirement applies to any VPN gateway that is an intermediary of individual sessions (e.g., proxy, ALG, TLS VPN). VPN gateways that perform these functions must be able to identify which session identifiers were generated when the sessions were established.
STIGDate
Virtual Private Network (VPN) Security Requirements Guide2025-09-10

Related Frameworks

1 mapping across 3 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

NET-09.2Unique System-Generated Session Identifiers
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (12) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AU-4(1)Transfer to Alternate Storage
1.00
CM-5(1)Automated Access Enforcement and Audit Records
1.00
CM-6Configuration Settings
1.00
CM-7Least Functionality
1.00
SC-2Separation of System and User Functionality
1.00
SC-23(3)Unique System-generated Session Identifiers
1.00
SC-5Denial-of-service Protection
1.00
SC-8Transmission Confidentiality and Integrity
1.00
SC-8(2)Pre- and Post-transmission Handling
1.00

+2 more (top 10 by confidence shown)

CCI1 mapping
CCI-001664
1.00

Details

Check Text (C-207225r608988_chk)

Verify the VPN Gateway recognizes only system-generated session identifiers. If the VPN Gateway does not recognize only system-generated session identifiers, this is a finding.

Fix Text (F-7485r378297_fix)

Configure the VPN Gateway to recognize only system-generated session identifiers.