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Vulnerability Details : CVE-2021-20218

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
Publish Date : 2021-03-16 Last Update Date : 2021-03-25
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- CVSS Scores & Vulnerability Types

CVSS Score
5.8
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Directory traversal
CWE ID 22

- Products Affected By CVE-2021-20218

# Product Type Vendor Product Version Update Edition Language
1 Application Redhat A-mq Online - * * * Version Details Vulnerabilities
2 Application Redhat Build Of Quarkus - * * * Version Details Vulnerabilities
3 Application Redhat Codeready Studio 12.0 * * * Version Details Vulnerabilities
4 Application Redhat Descision Manager 7.0 * * * Version Details Vulnerabilities
5 Application Redhat Integration Camel K - * * * Version Details Vulnerabilities
6 Application Redhat Jboss Fuse 7.0.0 * * * Version Details Vulnerabilities
7 Application Redhat Kubernetes-client * * * * Version Details Vulnerabilities
8 Application Redhat Openshift Container Platform 3.11 * * * Version Details Vulnerabilities
9 Application Redhat Process Automation 7.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Redhat A-mq Online 1
Redhat Build Of Quarkus 1
Redhat Codeready Studio 1
Redhat Descision Manager 1
Redhat Integration Camel K 1
Redhat Jboss Fuse 1
Redhat Kubernetes-client 1
Redhat Openshift Container Platform 1
Redhat Process Automation 1

- References For CVE-2021-20218

https://github.com/fabric8io/kubernetes-client/issues/2715
https://bugzilla.redhat.com/show_bug.cgi?id=1923405

- Metasploit Modules Related To CVE-2021-20218

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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