CVE-2017-1002101 Path traversal in Kubernetes
Attackers can access host filesystem files via subpath volume mounts, requiring Kubernetes upgrades to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-1002101?
CVE-2017-1002101 is a high-severity path traversal vulnerability in Kubernetes Kubernetes, published on 13 Mar 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Kubernetes versions 1.3.x, 1.4.x, 1.5.x, 1.6.x and prior to versions 1.7.14, 1.8.9 and 1.9.4 containers using subpath volume mounts with any volume type (including non-privileged pods, subject to file permissions) can access files/directories outside of the volume, including the host's filesystem.
Weakness: CWE-59
Which versions are affected by CVE-2017-1002101?
It affects 1 product.
Products include Kubernetes Kubernetes.
How do I fix CVE-2017-1002101?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2017-1002101 being exploited?
There is no known exploitation of CVE-2017-1002101 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Kubernetes Kubernetes
- CVE-2018-1002105 Privilege Escalation in Kubernetes
- CVE-2017-1000056 Kubernetes Privilege Escalation
- CVE-2016-1906 Authorization bypass in Openshift
- CVE-2023-3676 Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation
- CVE-2023-3955 Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation
Sources
Also known as DEBIAN-CVE-2017-1002101, GHSA-rqgw-vh6p-qf7j.