CVE-2021-22100 Denial of service in Cloud Controller (CAPI) by cloud foundry
Attackers can cause Cloud Foundry CAPI instances to timeout and fail by pushing malicious service brokers, preventing app management.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-22100?
CVE-2021-22100 is a medium-severity denial of service vulnerability in Cloud Controller (CAPI) by cloud foundry, published on 25 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In cloud foundry CAPI versions prior to 1.122, a denial-of-service attack in which a developer can push a service broker that (accidentally or maliciously) causes CC instances to timeout and fail is possible. An attacker can leverage this vulnerability to cause an inability for anyone to push or manage apps.
Weakness: CWE-400
Which versions are affected by CVE-2021-22100?
It affects 2 products.
Products include Cloudfoundry Capi-Release, Cloudfoundry Cf-Deployment.
How do I fix CVE-2021-22100?
No fix has been published for CVE-2021-22100 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-22100 being exploited?
There is no known exploitation of CVE-2021-22100 in the wild and no public exploit code.
Other vulnerabilities in Cloud Controller (CAPI) by cloud foundry
Sources
Also known as GHSA-hpw7-xrjw-4cx3.