CVE-2021-32917 Missing authorization in n/a
Prosody's proxy65 component allows unrestricted bandwidth usage by unauthorized users due to missing authorization checks, enabling resource exhaustion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-32917?
CVE-2021-32917 is a medium-severity missing authorization vulnerability in Debian Debian Linux, published on 13 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Prosody before 0.11.9. The proxy65 component allows open access by default, even if neither of the users has an XMPP account on the local server, allowing unrestricted use of the server's bandwidth.
Weakness: CWE-862
Which versions are affected by CVE-2021-32917?
It affects 3 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Prosody Prosody.
How do I fix CVE-2021-32917?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-32917 being exploited?
There is no known exploitation of CVE-2021-32917 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2021-32917, GHSA-75h4-f9wm-hqpr, UBUNTU-CVE-2021-32917.