Cloud FoundryCFOUNDRY:DB19110DAE18C4BA41C1BD8688F693E2CVE-2018-1002105: Proxy request handling in kube-apiserver can leave vulnerable TCP connections | Cloud Foundry
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
97.2%
Severity
Critical
Vendor
Kubernetes
Affected Cloud Foundry Products and Versions
- CFCR Release
- All versions prior to v0.25.0
Description
With a specially crafted request, users are able to establish a connection through the Kubernetes API server to backend servers, then send arbitrary requests over the same connection directly to the backend, authenticated with the Kubernetes API server’s TLS credentials used to establish the backend connection.
Mitigation
Users of affected versions should apply the following mitigations or upgrades:
-
* CFCR release version v0.25.0
References
- <https://groups.google.com/forum/#!topic/kubernetes-announce/GVllWCg6L88>
- <https://github.com/kubernetes/kubernetes/issues/71411>
History
2018-12-05: Initial vulnerability report published.
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
97.2%