Cyber Resilience

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)

ATT&CK techniques this control mitigates (20)

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-319Cleartext Transmission of Sensitive Information1,000+Eliminates cleartext exposure of session identifiers or tokens that would allow hijacking.
CWE-346Origin Validation Error700+Mandates origin validation so that only legitimate endpoints can continue the authenticated session.
CWE-290Authentication Bypass by Spoofing700+Requires cryptographic or protocol-level verification that blocks spoofed session establishment or continuation.
CWE-384Session Fixation400+Enforces proper session ID generation and binding, preventing fixation of a known session token.
CWE-294Authentication Bypass by Capture-replay300+Protects against replay of captured session tokens or credentials by requiring authenticated, fresh session channels.
CWE-614Sensitive Cookie in HTTPS Session Without 'Secure' Attribute65Forces the Secure flag on session cookies, preventing their transmission over unauthenticated HTTP channels.
CWE-940Improper Verification of Source of a Communication Channel56Requires explicit verification of the communication source, blocking session hijacking via spoofed or alternate channels.
CWE-300Channel Accessible by Non-Endpoint55Directly 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 9.29.80.4290good
CVE-2025-52689 8.39.80.1154good
CVE-2024-454107.69.80.0150good
CVE-2025-28242 7.69.80.0181good
CVE-2024-38513 7.510.00.0069good
CVE-2025-497527.510.00.0091good
CVE-2024-23679 7.49.80.0084good
CVE-2023-47435 7.49.80.0063good
CVE-2024-23601 7.49.80.0072good
CVE-2024-38438 7.49.80.0066good
CVE-2022-40916 7.49.80.0082good
CVE-2025-46408 7.49.80.0066good
CVE-2026-118567.49.80.0060good
CVE-2024-1554 7.39.80.0038good
CVE-2024-8643 7.39.80.0046good
CVE-2024-11317 7.310.00.0044good
CVE-2024-13279 7.39.80.0046good
CVE-2024-57052 7.39.80.0051good
CVE-2025-1945 7.39.80.0054good
CVE-2025-28238 7.39.80.0040good
CVE-2025-45949 7.39.80.0050good
CVE-2025-26844 7.39.80.0041good
CVE-2025-53102 7.39.80.0045good
CVE-2025-66255 7.39.80.0038good
CVE-2025-67446 7.39.80.0045good

Other controls in family SC

SC-1 SC-10 SC-11 SC-12 SC-13 SC-14 SC-15 SC-16 SC-17 SC-18 SC-19 SC-2 SC-20 SC-21 SC-22 SC-24 SC-25 SC-26 SC-27 SC-28 SC-29 SC-3 SC-30 SC-31 SC-32 SC-33 SC-34 SC-35 SC-36 SC-37 SC-38 SC-39 SC-4 SC-40 SC-41 SC-42 SC-43 SC-44 SC-45 SC-46 SC-47 SC-48 SC-49 SC-5 SC-50 SC-51 SC-6 SC-7 SC-8 SC-9