NIST 800-53 r5 · Controls catalogue · Family SC
SC-23Session Authenticity
Protect the authenticity of communications sessions.
Last updated: 22 August 2026 14:14 UTC
Implementations targeting this control (10)
- aws-config-elb-tls-https-listeners-only ELB / ALB listeners use HTTPS or TLS AWS::ElasticLoadBalancingV2::Listener partial protect enforce
- aws-config-alb-http-to-https-redirection-check Alb Http To Https Redirection Check AWS::ElasticLoadBalancingV2::LoadBalancer partial protect enforce
- aws-config-api-gw-ssl-enabled Api Gw Ssl Enabled AWS::ApiGateway::Stage partial protect enforce
- aws-config-elasticsearch-node-to-node-encryption-check Elasticsearch Node To Node Encryption Check AWS::OpenSearchService::Domain partial protect enforce
- aws-config-elb-acm-certificate-required Elb Acm Certificate Required AWS::ElasticLoadBalancing::LoadBalancer partial protect enforce
- aws-config-elbv2-acm-certificate-required Elbv2 Acm Certificate Required AWS::ElasticLoadBalancingV2::LoadBalancer partial protect enforce
- aws-config-opensearch-https-required Opensearch Https Required AWS::OpenSearchService::Domain partial protect enforce
- aws-config-opensearch-node-to-node-encryption-check Opensearch Node To Node Encryption Check AWS::OpenSearchService::Domain partial protect enforce
- aws-config-redshift-require-tls-ssl Redshift Require Tls Ssl AWS::Redshift::Cluster partial protect enforce
- aws-config-s3-bucket-ssl-requests-only S3 Bucket Ssl Requests Only AWS::S3::Bucket partial protect enforce CIS §2.1.1Hub S3.5
ATT&CK techniques this control mitigates (20)
- T1071 Application Layer Protocol Command And Control
- T1071.001 Web Protocols Command And Control
- T1071.002 File Transfer Protocols Command And Control
- T1071.003 Mail Protocols Command And Control
- T1071.004 DNS Command And Control
- T1185 Browser Session Hijacking Collection
- T1535 Unused/Unsupported Cloud Regions Stealth
- T1550.004 Web Session Cookie Lateral Movement
- T1557 Adversary-in-the-Middle Credential Access, Collection
- T1557.001 Name Resolution Poisoning and SMB Relay Credential Access, Collection
- T1557.002 ARP Cache Poisoning Credential Access, Collection
- T1557.003 DHCP Spoofing Credential Access, Collection
- T1557.004 Evil Twin Credential Access, Collection
- T1563.001 SSH Hijacking Lateral Movement
- T1573 Encrypted Channel Command And Control
- T1573.001 Symmetric Cryptography Command And Control
- T1573.002 Asymmetric Cryptography Command And Control
- T1622 Debugger Evasion Stealth, Discovery
- T1685 Disable or Modify Tools Defense Impairment
- T1688 Safe Mode Boot Defense Impairment
Weaknesses this control addresses (8)AI-assisted
CWEs ranked by how often they appear in real CVEs. The rationale describes how this control reduces exploitability of each weakness class.
| CWE | Name | CVEs | Why this control addresses it |
|---|---|---|---|
CWE-319 | Cleartext Transmission of Sensitive Information | 1,000+ | Eliminates cleartext exposure of session identifiers or tokens that would allow hijacking. |
CWE-346 | Origin Validation Error | 700+ | Mandates origin validation so that only legitimate endpoints can continue the authenticated session. |
CWE-290 | Authentication Bypass by Spoofing | 700+ | Requires cryptographic or protocol-level verification that blocks spoofed session establishment or continuation. |
CWE-384 | Session Fixation | 400+ | Enforces proper session ID generation and binding, preventing fixation of a known session token. |
CWE-294 | Authentication Bypass by Capture-replay | 300+ | Protects against replay of captured session tokens or credentials by requiring authenticated, fresh session channels. |
CWE-614 | Sensitive Cookie in HTTPS Session Without 'Secure' Attribute | 65 | Forces the Secure flag on session cookies, preventing their transmission over unauthenticated HTTP channels. |
CWE-940 | Improper Verification of Source of a Communication Channel | 56 | Requires explicit verification of the communication source, blocking session hijacking via spoofed or alternate channels. |
CWE-300 | Channel Accessible by Non-Endpoint | 55 | Directly prevents non-endpoint access or interception of the session communication path. |
Top CVEs where this control is the strongest mitigation
| CVE | Risk | CVSS | EPSS | Match |
|---|---|---|---|---|
CVE-2023-49231 UPD | 9.2 | 9.8 | 0.4290 | good |
CVE-2025-52689 UPD | 8.3 | 9.8 | 0.1154 | good |
CVE-2024-45410 | 7.6 | 9.8 | 0.0150 | good |
CVE-2025-28242 UPD | 7.6 | 9.8 | 0.0181 | good |
CVE-2024-38513 UPD | 7.5 | 10.0 | 0.0069 | good |
CVE-2025-49752 | 7.5 | 10.0 | 0.0091 | good |
CVE-2024-23679 UPD | 7.4 | 9.8 | 0.0084 | good |
CVE-2023-47435 UPD | 7.4 | 9.8 | 0.0063 | good |
CVE-2024-23601 UPD | 7.4 | 9.8 | 0.0072 | good |
CVE-2024-38438 UPD | 7.4 | 9.8 | 0.0066 | good |
CVE-2022-40916 UPD | 7.4 | 9.8 | 0.0082 | good |
CVE-2025-46408 UPD | 7.4 | 9.8 | 0.0066 | good |
CVE-2026-11856 | 7.4 | 9.8 | 0.0060 | good |
CVE-2024-1554 UPD | 7.3 | 9.8 | 0.0038 | good |
CVE-2024-8643 UPD | 7.3 | 9.8 | 0.0046 | good |
CVE-2024-11317 UPD | 7.3 | 10.0 | 0.0044 | good |
CVE-2024-13279 UPD | 7.3 | 9.8 | 0.0046 | good |
CVE-2024-57052 UPD | 7.3 | 9.8 | 0.0051 | good |
CVE-2025-1945 UPD | 7.3 | 9.8 | 0.0054 | good |
CVE-2025-28238 UPD | 7.3 | 9.8 | 0.0040 | good |
CVE-2025-45949 UPD | 7.3 | 9.8 | 0.0050 | good |
CVE-2025-26844 UPD | 7.3 | 9.8 | 0.0041 | good |
CVE-2025-53102 UPD | 7.3 | 9.8 | 0.0045 | good |
CVE-2025-66255 UPD | 7.3 | 9.8 | 0.0038 | good |
CVE-2025-67446 UPD | 7.3 | 9.8 | 0.0045 | good |