CVE-2020-10697 Missing authorization in Tower
An attacker can pollute the memcached cache via a playbook, causing denial of service or potentially accessing sensitive data in Ansible Tower.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-10697?
CVE-2020-10697 is a medium-severity missing authorization vulnerability in Redhat Ansible Tower, 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 Ansible Tower when running Openshift. Tower runs a memcached, which is accessed via TCP. An attacker can take advantage of writing a playbook polluting this cache, causing a denial of service attack. This attack would not completely stop the service, but in the worst-case scenario, it can reduce the Tower performance, for which memcached is designed. Theoretically, more sophisticated attacks can be performed by manipulating and crafting the cache, as Tower relies on memcached as a place to pull out setting values. Confidential and sensitive data stored in memcached should not be pulled, as this information is encrypted. This flaw affects Ansible Tower versions before 3.6.4, Ansible Tower versions before 3.5.6 and Ansible Tower versions before 3.4.6.
Weakness: CWE-862
Which versions are affected by CVE-2020-10697?
It affects 1 product.
Products include Redhat Ansible Tower.
How do I fix CVE-2020-10697?
No fix has been published for CVE-2020-10697 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-10697 being exploited?
There is no known exploitation of CVE-2020-10697 in the wild and no public exploit code.
Other vulnerabilities in Redhat Ansible Tower
Sources
Also known as GHSA-rhg6-3qw6-38pp.