Secret disclosure via unchecked envFrom references
Published Apr 22, 2024 · Updated Sep 10, 2024
Improper input validation in Kubernetes kube-apiserver 1.29.0 through 1.29.3 allows remote authenticated users to read unauthorized Secrets. The ServiceAccount admission plugin's secret-reference checks omit EnvFrom SecretRef entries in regular, init, and ephemeral containers. Exploitation requires high-privilege pod creation or update access, the ServiceAccount plugin, the non-default enforce-mountable-secrets annotation, and envFrom use.
Summary
What happened
Improper input validation in Kubernetes kube-apiserver 1.29.0 through 1.29.3 allows remote authenticated users to read unauthorized Secrets. The ServiceAccount admission plugin's secret-reference checks omit EnvFrom SecretRef entries in regular, init, and ephemeral containers. Exploitation requires high-privilege pod creation or update access, the ServiceAccount plugin, the non-default enforce-mountable-secrets annotation, and envFrom use.
The record
- CVE
- CVE-2024-3177
- Published
- Apr 22, 2024
- Updated
- Sep 10, 2024
- Vendor
- Kubernetes
- Product
- Kubernetes
- Classifications
- CWE-20, T1552.007
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 22, 2024CVE publishedPublication date reported by the CVE source.
- Sep 10, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=1.27.12
- Affected versionversion=1.29.0
- Affected versionversion=v1.28.0 - v1.28.8
- Affected versionversion=v1.29.0 - v1.29.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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