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[email protected]CVE-2022-23551

HistoryDec 21, 2022 - 8:15 p.m.

CVE-2022-23551

2022-12-2120:15:09

CWE-1259

CWE-863

[email protected]

web.nvd.nist.gov

cve-2022-23551

aad-pod-identity

azure active directory

kubernetes

nmi component

security vulnerability

identity management

token validation

regex

imds

aks

pod-managed identities

nvd

5.3 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:L

5.1 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

29.1%

JSON

aad-pod-identity assigns Azure Active Directory identities to Kubernetes applications and has now been deprecated as of 24 October 2022. The NMI component in AAD Pod Identity intercepts and validates token requests based on regex. In this case, a token request made with backslash in the request (example: /metadata/identity\oauth2\token/) would bypass the NMI validation and be sent to IMDS allowing a pod in the cluster to access identities that it shouldn’t have access to. This issue has been fixed and has been included in AAD Pod Identity release version 1.8.13. If using the AKS pod-managed identities add-on, no action is required. The clusters should now be running the version 1.8.13 release.

Affected configurations

Vulners

NVD

Node

azureaad_pod_identityRange<1.8.13

CPENameOperatorVersion
microsoft:azure_ad_pod_identitymicrosoft azure ad pod identitylt1.8.13

CPE	Name	Operator	Version
microsoft:azure_ad_pod_identity	microsoft azure ad pod identity	lt	1.8.13

CNA Affected

[
  {
    "vendor": "Azure",
    "product": "aad-pod-identity",
    "versions": [
      {
        "version": "< 1.8.13",
        "status": "affected"
      }
    ]
  }
]