It was found that OpenShift Container Platform versions 3.6.x - 4.6.0 does not perform SSH Host Key checking when using ssh key authentication during builds. An attacker, with the ability to redirect network traffic, could use this to alter the resulting build output.
Weakness
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openshift_container_platform | Redhat | 3.6 (including) | 4.1 (including) |
| Red Hat OpenShift Container Platform 3.10 | RedHat | atomic-openshift-0:3.10.175-1.git.0.f9f0e81.el7 | * |
| Red Hat OpenShift Container Platform 3.10 | RedHat | cri-o-0:1.10.6-2.rhaos3.10.git56d7d9a.el7 | * |
| Red Hat OpenShift Container Platform 3.11 | RedHat | atomic-openshift-0:3.11.153-1.git.0.aaf3f71.el7 | * |
| Red Hat OpenShift Container Platform 3.9 | RedHat | atomic-openshift-0:3.9.102-1.git.0.6411f52.el7 | * |
| Red Hat OpenShift Container Platform 4.1 | RedHat | openshift4/ose-docker-builder:v4.1.20-201910102034 | * |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/114.html
- https://cwe.mitre.org/data/definitions/115.html
- https://cwe.mitre.org/data/definitions/151.html
- https://cwe.mitre.org/data/definitions/194.html
- https://cwe.mitre.org/data/definitions/22.html
- https://cwe.mitre.org/data/definitions/57.html
- https://cwe.mitre.org/data/definitions/593.html
- https://cwe.mitre.org/data/definitions/633.html
- https://cwe.mitre.org/data/definitions/650.html
- https://cwe.mitre.org/data/definitions/94.html
References
- https://access.redhat.com/errata/RHSA-2019:2989
- https://access.redhat.com/errata/RHSA-2019:3007
- https://access.redhat.com/errata/RHSA-2019:3143
- https://access.redhat.com/errata/RHSA-2019:3811
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10150
- https://docs.openshift.com/container-platform/3.11/dev_guide/builds/build_inputs.html#source-secrets-ssh-key-authentication
- https://access.redhat.com/errata/RHSA-2019:2989
- https://access.redhat.com/errata/RHSA-2019:3007
- https://access.redhat.com/errata/RHSA-2019:3143
- https://access.redhat.com/errata/RHSA-2019:3811
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10150
- https://docs.openshift.com/container-platform/3.11/dev_guide/builds/build_inputs.html#source-secrets-ssh-key-authentication