CVE-2022-23551CWE-1259CWE-863

AAD Pod Identity obtaining token with backslash

Medium · published December 21, 2022

CVSS v3.1
5.3
EPSS
1%
Percentile
54.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00763 · 54.9th percentile
Weaknesses
CWE-1259 · Improper Restriction of Security Token Assignment; CWE-863 · Incorrect Authorization
Published
2022-12-21T19:50Z
EPSS history
Timeline
  • 21 DEC 19:50Z
    AAD Pod Identity obtaining token with backslash
    cvelistv5