CVE-2021-20253 Privilege escalation in ansible-tower
Attackers can escape job isolation to escalate privileges to the awx user, compromising data confidentiality, integrity, and system availability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-20253?
CVE-2021-20253 is a medium-severity vulnerability in Redhat Ansible Tower, published on 9 Mar 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A flaw was found in ansible-tower. The default installation is vulnerable to Job Isolation escape allowing an attacker to elevate the privilege from a low privileged user to the awx user from outside the isolated environment. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Weakness: CWE-552
Which versions are affected by CVE-2021-20253?
It affects 1 product.
Products include Redhat Ansible Tower.
How do I fix CVE-2021-20253?
No fix has been published for CVE-2021-20253 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-20253 being exploited?
There is no known exploitation of CVE-2021-20253 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Redhat Ansible Tower
Sources
Also known as GHSA-rr45-4xhx-rxc8.