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.
Published 2022-12-21 20:15:09
Updated 2023-01-04 19:54:15
Source GitHub, Inc.
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2022-23551

0.09%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-23551

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.3
MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:L
0.6
4.7
NIST
5.3
MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:L
0.6
4.7
GitHub, Inc.

CWE ids for CVE-2022-23551

  • The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
    Assigned by: security-advisories@github.com (Secondary)
  • The System-On-A-Chip (SoC) implements a Security Token mechanism to differentiate what actions are allowed or disallowed when a transaction originates from an entity. However, the Security Tokens are improperly protected.
    Assigned by: security-advisories@github.com (Secondary)

References for CVE-2022-23551

Products affected by CVE-2022-23551

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