An improper file permissions vulnerability affects Kata Containers prior to 1.11.5. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9029 advisory.

    - Address CVE-2020-28914

    kata
    - Address CVE-2020-28914

    kubernetes
    - Kata CVE-2020-28914

    olcne
    - Address CVE-2020-28914: An improper file permissions vulnerability affects Kata Containers prior to     1.11.5

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9028 advisory.

    - Kata CVE-2020-28914

    kata-proxy
    - Address CVE-2020-28914: An improper file permissions vulnerability affects Kata Containers prior to     1.11.5
    - Address CVE-2020-8554: man-in-the-middle vulnerability using Kubernetes service External IPs

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the version of the kata-containers package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - An improper file permissions vulnerability affects Kata     Containers prior to 1.11.5. When using a Kubernetes     hostPath volume and mounting either a file or directory     into a container as readonly, the file/directory is     mounted as readOnly inside the container, but is still     writable inside the guest. For a container breakout     situation, a malicious guest can potentially modify or     delete files/directories expected to be     read-only.(CVE-2020-28914)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
146377	Oracle Linux 7 : olcne (ELSA-2021-9029)	Nessus	Oracle Linux Local Security Checks	high
146376	Oracle Linux 7 / 8 : olcne (ELSA-2021-9028)	Nessus	Oracle Linux Local Security Checks	high
144680	EulerOS 2.0 SP9 : kata-containers (EulerOS-SA-2021-1027)	Nessus	Huawei Local Security Checks	high
144655	EulerOS 2.0 SP9 : kata-containers (EulerOS-SA-2021-1008)	Nessus	Huawei Local Security Checks	high

Detections

Analytics

CVE-2020-28914

high

Tenable Plugins

high

high

high

high