Cyber Posture

NIST 800-53 r5 · Controls catalogue · Family IA

IA-13Identity Providers and Authorization Servers

Employ identity providers and authorization servers to manage user, device, and non-person entity (NPE) identities, attributes, and access rights supporting authentication and authorization decisions in accordance with {{ insert: param, ia-13_odp.01 }} using {{ insert: param, ia-13_odp.02 }}.

Last updated: 09 May 2026 03:25 UTC

Implementations targeting this control (0)

ATT&CK techniques this control mitigates (17)

Weaknesses this control addresses (8)AI

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-862Missing Authorization8,680Requiring authorization servers ensures authorization is performed for protected functions.
CWE-284Improper Access Control4,832Authorization servers centrally manage access rights, preventing improper access control.
CWE-287Improper Authentication4,730Identity providers centralize and enforce authentication mechanisms, reducing improper authentication.
CWE-863Incorrect Authorization3,234Centralized authorization servers reduce incorrect authorization by enforcing consistent policies.
CWE-306Missing Authentication for Critical Function2,567Identity providers mandate authentication for functions that would otherwise lack it.
CWE-798Use of Hard-coded Credentials1,955External identity providers eliminate the need for hard-coded credentials in applications.
CWE-285Improper Authorization1,230Dedicated authorization servers support policy-based decisions, mitigating improper authorization.
CWE-288Authentication Bypass Using an Alternate Path or Channel523Centralized IdPs close alternate authentication paths that enable bypass.

Top CVEs where this control is the strongest mitigation

CVE Risk CVSS EPSS Match
CVE-2025-647172.09.80.0070good
CVE-2025-94852.09.80.0074good
CVE-2026-32242.09.80.0006good
CVE-2026-24181.89.10.0010good
CVE-2026-274781.89.10.0002good
CVE-2025-660011.88.80.0003good
CVE-2026-285131.78.50.0001good
CVE-2026-62661.78.30.0004good
CVE-2025-151151.36.50.0017good
CVE-2026-24858 KEV4.39.80.0620good
CVE-2026-319572.010.00.0027good
CVE-2025-10612.09.80.0015good
CVE-2025-15152.09.80.0006good
CVE-2026-201842.09.80.0007good
CVE-2026-333222.09.80.0003good
CVE-2025-276722.09.80.0006good
CVE-2025-74442.09.80.0048good
CVE-2025-77102.09.80.0044good
CVE-2026-323011.99.30.0010good
CVE-2025-221461.89.10.0034good
CVE-2026-344561.89.10.0010good
CVE-2025-243991.88.80.0040partial
CVE-2025-98031.88.80.0009good
CVE-2026-331751.88.80.0013good
CVE-2026-309671.88.80.0011good

Other controls in family IA

IA-1 IA-10 IA-11 IA-12 IA-2 IA-3 IA-4 IA-5 IA-6 IA-7 IA-8 IA-9