What is the vulnerability ID of this insecure modification flaw in the /etc/passwd file?

The vulnerability ID is CVE-2021-20264.

What is the severity of CVE-2021-20264?

The severity of CVE-2021-20264 is high with a score of 7.8.

Which software versions are affected by CVE-2021-20264?

The openjdk-1.8 and openjdk-11 containers are affected by CVE-2021-20264.

How can an attacker exploit this vulnerability?

An attacker with access to the container can modify the /etc/passwd file and escalate their privileges.

Are there any remediation steps available for CVE-2021-20264?

Yes, you can refer to the official Red Hat security advisories for remediation steps: [RHSA-2021:0946](https://access.redhat.com/errata/RHSA-2021:0946) and [RHSA-2021:0945](https://access.redhat.com/errata/RHSA-2021:0945).

Vulnerability/
CVE-2021-20264

high

7.8

CWE

732 266

24/2/2021

6/10/2021

3/8/2024

CVE-2021-20264

First published: Wed Feb 24 2021(Updated: )

An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
redhat/openjdk	<1.8	1.8
Oracle OpenJDK	=1.8.0
Oracle OpenJDK	=11

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Frequently Asked Questions

What is the vulnerability ID of this insecure modification flaw in the /etc/passwd file?
The vulnerability ID is CVE-2021-20264.
What is the severity of CVE-2021-20264?
The severity of CVE-2021-20264 is high with a score of 7.8.
Which software versions are affected by CVE-2021-20264?
The openjdk-1.8 and openjdk-11 containers are affected by CVE-2021-20264.
How can an attacker exploit this vulnerability?
An attacker with access to the container can modify the /etc/passwd file and escalate their privileges.
Are there any remediation steps available for CVE-2021-20264?
Yes, you can refer to the official Red Hat security advisories for remediation steps: [RHSA-2021:0946](https://access.redhat.com/errata/RHSA-2021:0946) and [RHSA-2021:0945](https://access.redhat.com/errata/RHSA-2021:0945).

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