CVE-2021-3344 Privilege escalation in openshift/builder
OpenShift users can escalate privileges and modify container images by accessing mounted credentials during build time.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-3344?
CVE-2021-3344 is a high-severity vulnerability in Redhat Openshift Container Platform, published on 16 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A privilege escalation flaw was found in OpenShift builder. During build time, credentials outside the build context are automatically mounted into the container image under construction. An OpenShift user, able to execute code during build time inside this container can re-use the credentials to overwrite arbitrary container images in internal registries and/or escalate their privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This affects github.com/openshift/builder v0.0.0-20210125201112-7901cb396121 and before.
Weakness: CWE-522
Which versions are affected by CVE-2021-3344?
It affects 2 products.
Products include Redhat Openshift Builder, Redhat Openshift Container Platform.
How do I fix CVE-2021-3344?
No fix has been published for CVE-2021-3344 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-3344 being exploited?
There is no known exploitation of CVE-2021-3344 in the wild and no public exploit code.