CVE-2022-21707 Incorrect Authorization in wasmCloud
Attackers can bypass capability authorization in wasmCloud Host Runtime, allowing unauthorized invocations from linked capability providers.
- 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-2022-21707?
CVE-2022-21707 is a medium-severity missing authorization vulnerability in wasmcloud-otp, published on 21 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
wasmCloud Host Runtime is a server process that securely hosts and provides dispatch for web assembly (WASM) actors and capability providers. In versions prior to 0.52.2 actors can bypass capability authorization. Actors are normally required to declare their capabilities for inbound invocations, but with this vulnerability actor capability claims are not verified upon receiving invocations. This compromises the security model for actors as they can receive unauthorized invocations from linked capability providers. The problem has been patched in versions `0.52.2` and greater. There is no workaround and users are advised to upgrade to an unaffected version as soon as possible.
Which versions are affected by CVE-2022-21707?
It affects 1 product.
Products include Wasmcloud Host Runtime.
How do I fix CVE-2022-21707?
No fix has been published for CVE-2022-21707 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-2022-21707 being exploited?
There is no known exploitation of CVE-2022-21707 in the wild and no public exploit code.
Sources
Also known as GHSA-2cmx-rr54-88g5.