要点
- CVE-2022-23551 は github.com/Azure/aad-pod-identity, azure ad pod identity (microsoft) に影響する深刻度「中」 (CVSS 5.3) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.76%（全脆弱性の 55.5% より高い）。
- 対処：1.8.13 以降に更新してください。
概要
Impact
What kind of vulnerability is it? Who is impacted?
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.
Patches
Has the problem been patched? What versions should users upgrade to?
- We analyzed this bug and determined that we needed to fix it. This fix has been included in AAD Pod Identity release v1.8.13
- If using the AKS pod-managed identities add-on, no action is required. The clusters should now be running the
v1.8.13 release.
For more information
If you have any questions or comments about this advisory:
Open an issue in Azure/aad-pod-identity
NVD の説明
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.
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