CVE-2020-10729 Insufficiently random values in Ansible
Insufficient randomness in Ansible password lookups causes cached values to be reused, potentially exposing all generated passwords for a file.
- 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-2020-10729?
CVE-2020-10729 is a medium-severity vulnerability in Debian Debian Linux, published on 27 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw was found in the use of insufficiently random values in Ansible. Two random password lookups of the same length generate the equal value as the template caching action for the same file since no re-evaluation happens. The highest threat from this vulnerability would be that all passwords are exposed at once for the file. This flaw affects Ansible Engine versions before 2.9.6.
Weakness: CWE-330
Which versions are affected by CVE-2020-10729?
3 open source packages ship an affected version, including ansible. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
ansible PyPI | All versions | 2.9.6 |
ansible PyPI | All versions | 2.9.6 |
ansible PyPI | All versions | 2.9.6 |
Linux distribution packages (4)
ansible Red Hat:ansible_engine:2.9::el7 | All versions | 0:2.9.6-1.el7ae |
ansible-test Red Hat:ansible_engine:2.9::el7 | All versions | 0:2.9.6-1.el7ae |
ansible Red Hat:ansible_engine:2.9::el8 | All versions | 0:2.9.6-1.el8ae |
ansible-test Red Hat:ansible_engine:2.9::el8 | All versions | 0:2.9.6-1.el8ae |
Products include Debian Debian Linux, Redhat Ansible Engine.
How do I fix CVE-2020-10729?
Upgrade ansible to 2.9.6 or later.
Is CVE-2020-10729 being exploited?
There is no known exploitation of CVE-2020-10729 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as CLSA-2025-1744709445, CLSA-2025-1744719966, DEBIAN-CVE-2020-10729, GHSA-r6h7-5pq2-j77h, PYSEC-2021-105, RHBA-2020:0784 and 1 more.