CVE-2021-3702 ansible-runner vulnerable to Race Condition

Medium 6.3 Published Updated

An attacker can exploit a race condition in ansible-runner to substitute a temporary directory, gaining unauthorized access to private data.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2021-3702?

CVE-2021-3702 is a medium-severity vulnerability in ansible-runner, published on 23 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A race condition flaw was found in ansible-runner, where an attacker could watch for rapid creation and deletion of a temporary directory, substitute their directory at that name, and then have access to ansible-runner's private_data_dir the next time ansible-runner made use of the private_data_dir. The highest Threat out of this flaw is to integrity and confidentiality.

Weakness: CWE-362

Which versions are affected by CVE-2021-3702?

3 open source packages ship an affected version, including ansible-runner. It affects 1 product.

PackageAffectedFixed in
ansible-runner PyPIFrom 2.0.02.1.0
ansible-runner PyPIFrom 2.0.02.1.0
ansible-runner PyPIFrom 2.0.02.1.0

Products include Redhat Ansible Runner.

How do I fix CVE-2021-3702?

Upgrade ansible-runner to 2.1.0 or later.

Is CVE-2021-3702 being exploited?

There is no known exploitation of CVE-2021-3702 in the wild and no public exploit code.

Sources

Also known as GHSA-772j-xvf9-qpf5, PYSEC-2022-43068.

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