Vulnerability Details : CVE-2020-28914
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.
Products affected by CVE-2020-28914
- cpe:2.3:a:katacontainers:kata-containers:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-28914
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 12 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-28914
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
3.6
|
LOW | AV:L/AC:L/Au:N/C:N/I:P/A:P |
3.9
|
4.9
|
NIST | |
|
7.1
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
1.8
|
5.2
|
NIST |
CWE ids for CVE-2020-28914
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-28914
-
https://github.com/kata-containers/runtime/pull/3042
readonly volume should be bind mounted readonly on the host by bergwolf · Pull Request #3042 · kata-containers/runtime · GitHubThird Party Advisory
-
https://github.com/kata-containers/kata-containers/pull/1062
runtime: readonly volume should be bind mounted readonly on the host by bergwolf · Pull Request #1062 · kata-containers/kata-containers · GitHubThird Party Advisory
-
https://github.com/kata-containers/runtime/pull/3051
Backports: Read-only mount fixes for 1.11 by amshinde · Pull Request #3051 · kata-containers/runtime · GitHubThird Party Advisory
-
https://github.com/kata-containers/runtime/releases/tag/1.11.5
Release # Release 1.11.5 · kata-containers/runtime · GitHubRelease Notes;Third Party Advisory
-
https://github.com/kata-containers/runtime/releases/tag/1.12.0
Release # Release 1.12.0 · kata-containers/runtime · GitHubRelease Notes;Third Party Advisory
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