Vulnerability CVE-2022-21707


Published: 2022-01-21   Modified: 2022-01-22

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.

Type:

CWE-863

(Incorrect Authorization)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.5/10
4.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Wasmcloud -> Host runtime 

 References:
https://github.com/wasmCloud/wasmcloud-otp/security/advisories/GHSA-2cmx-rr54-88g5
https://github.com/wasmCloud/wasmcloud-otp/commit/fd07262074b98b06106a31fd1957dc2319d438a5

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