CVE-2021-20218
Fabric8 Kubernetes-Client Unauthorized File Copy Vulnerability
Description
A flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious pod/container to cause applications using the fabric8 kubernetes-client `copy` command to extract files outside the working path. The highest threat from this vulnerability is to integrity and system availability. This has been fixed in kubernetes-client-4.13.2 kubernetes-client-5.0.2 kubernetes-client-4.11.2 kubernetes-client-4.7.2
INFO
Published Date :
March 16, 2021, 9:15 p.m.
Last Modified :
Nov. 21, 2024, 5:46 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2021-20218
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the RHEL OpenShift Container Platform 4.7.5 package based on the guidance in RHSA-2021:1006.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-20218.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1923405 | Issue Tracking Vendor Advisory |
| https://github.com/fabric8io/kubernetes-client/issues/2715 | Patch Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1923405 | Issue Tracking Vendor Advisory |
| https://github.com/fabric8io/kubernetes-client/issues/2715 | Patch Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20218 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-20218
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20218 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20218 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1923405 Added Reference https://github.com/fabric8io/kubernetes-client/issues/2715 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Mar. 25, 2021
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:P) Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:P) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H -
Initial Analysis by [email protected]
Mar. 23, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1923405 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1923405 Issue Tracking, Vendor Advisory Changed Reference Type https://github.com/fabric8io/kubernetes-client/issues/2715 No Types Assigned https://github.com/fabric8io/kubernetes-client/issues/2715 Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:redhat:kubernetes-client:*:*:*:*:*:*:*:* versions from (including) 4.2.0 up to (excluding) 4.7.2 *cpe:2.3:a:redhat:kubernetes-client:*:*:*:*:*:*:*:* versions from (including) 4.8.0 up to (excluding) 4.11.2 *cpe:2.3:a:redhat:kubernetes-client:*:*:*:*:*:*:*:* versions from (including) 4.12.0 up to (excluding) 4.13.2 *cpe:2.3:a:redhat:kubernetes-client:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 5.0.2 Added CPE Configuration OR *cpe:2.3:a:redhat:a-mq_online:-:*:*:*:*:*:*:* *cpe:2.3:a:redhat:build_of_quarkus:-:*:*:*:*:*:*:* *cpe:2.3:a:redhat:codeready_studio:12.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:descision_manager:7.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:integration_camel_k:-:*:*:*:*:*:*:* *cpe:2.3:a:redhat:jboss_fuse:7.0.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:* *cpe:2.3:a:redhat:process_automation:7.0:*:*:*:*:*:*:*
Vulnerability Scoring Details
Base CVSS Score: 7.4
Base CVSS Score: 5.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.59 }} 0.01%
score
0.68134
percentile