CVE-2021-20253 : Security Advisory and Response

A flaw in ansible-tower allows an attacker to escalate privileges, posing a risk to data confidentiality, integrity, and system availability.

Understanding CVE-2021-20253

This CVE identifies a vulnerability in ansible-tower that can lead to a privilege escalation attack.

What is CVE-2021-20253?

The flaw in ansible-tower's default installation enables an attacker to elevate privilege, compromising data confidentiality, integrity, and system availability.

The Impact of CVE-2021-20253

The vulnerability exposes systems to unauthorized privilege escalation, risking data security and system stability.

Technical Details of CVE-2021-20253

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw allows a low privileged user to escalate to the awx user from outside the isolated environment, compromising system security.

Affected Systems and Versions

ansible-tower versions 3.8.2, 3.7.5, and 3.6.7 are known to be affected by this vulnerability.

Exploitation Mechanism

Attackers exploit a Job Isolation escape flaw to gain higher privileges within the ansible-tower environment.

Mitigation and Prevention

Discover how to address and prevent vulnerabilities like CVE-2021-20253.

Immediate Steps to Take

Immediate actions to secure vulnerable systems and prevent privilege escalation.

Long-Term Security Practices

Establishing long-term security measures to safeguard systems from similar vulnerabilities.

Patching and Updates

Guidance on applying patches and updates to mitigate the CVE-2021-20253 vulnerability.