Vulnerability identifier: #VU11127

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-1002101

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Kubernetes
Server applications / Frameworks for developing and running applications

Vendor: Kubernetes

Description
The vulnerability allows a remote authenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists due to improper security restrictions when using subpath volume mounts with any volume type. A remote attacker can gain unauthorized access to files and directories.

Mitigation
Update to versions 1.7.14, 1.8.9 or 1.9.4.

Vulnerable software versions

Kubernetes: 1.3.0 - 1.3.10, 1.4.0 - 1.4.12, 1.5.0 - 1.5.8, 1.6.0 - 1.6.13, 1.7.0 - 1.7.13, 1.8.0 - 1.8.8, 1.9.0 - 1.9.3

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External links
http://github.com/kubernetes/kubernetes/issues/60813

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.