CVE-2017-1000056 Kubernetes Privilege Escalation
Attackers can escalate privileges by exploiting a flaw in the PodSecurityPolicy admission plugin to use any existing policy object.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-1000056?
CVE-2017-1000056 is a critical vulnerability in Kubernetes Kubernetes, published on 13 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Kubernetes version 1.5.0-1.5.4 is vulnerable to a privilege escalation in the PodSecurityPolicy admission plugin resulting in the ability to make use of any existing PodSecurityPolicy object.
Weakness: CWE-862
Which versions are affected by CVE-2017-1000056?
3 open source packages ship an affected version, including k8s.io/kubernetes. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
k8s.io/kubernetes Go | From 1.5.0 | 1.5.5 |
k8s.io/kubernetes Go | From 1.5.0 | 1.5.5 |
k8s.io/kubernetes Go | From 1.5.0 | 1.5.5 |
Products include Kubernetes Kubernetes.
How do I fix CVE-2017-1000056?
Upgrade k8s.io/kubernetes to 1.5.5 or later.
Is CVE-2017-1000056 being exploited?
There is no known exploitation of CVE-2017-1000056 in the wild and no public exploit code.
Other vulnerabilities in Kubernetes Kubernetes
- CVE-2018-1002105 Privilege Escalation in Kubernetes
- 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
- CVE-2021-25741 Symlink Exchange Can Allow Host Filesystem Access
Sources
Also known as DEBIAN-CVE-2017-1000056, GHSA-2jx2-76rc-2v7v, GO-2023-1492.