CVE-2023-20882 Denial of service in Cloud Foundry Routing release
Attackers can cause denial of service for Cloud Foundry applications by prematurely closing client connections, triggering backend removal from the routing pool.
- 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-2023-20882?
CVE-2023-20882 is a medium-severity denial of service vulnerability in Cloud Foundry Routing release, published on 26 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Cloud foundry routing release versions from 0.262.0 and prior to 0.266.0,a bug in the gorouter process can lead to a denial of service of applications hosted on Cloud Foundry. Under the right circumstances, when client connections are closed prematurely, gorouter marks the currently selected backend as failed and removes it from the routing pool.
Weakness: CWE-400
Which versions are affected by CVE-2023-20882?
It affects 2 products.
Products include Cloudfoundry Cf-Deployment, Cloudfoundry Routing Release.
How do I fix CVE-2023-20882?
No fix has been published for CVE-2023-20882 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-2023-20882 being exploited?
There is no known exploitation of CVE-2023-20882 in the wild and no public exploit code.
Other vulnerabilities in Cloud Foundry Routing release
- CVE-2022-31733 Auth bypass in Cloud Foundry Diego and CF Deployment
- CVE-2020-5402 UAA fails to check the state parameter when authenticating with external IDPs
- CVE-2019-11293 UAA logs all query parameters with debug logging level
- CVE-2019-11290 Cloud Foundry UAA logs query parameters in tomcat access file
- CVE-2019-11283 Password leak in smbdriver logs
Sources
Also known as GHSA-f2f8-4q6m-2pw8.