Crayfish allows Remote Code Execution via Homarus Authorization header
Crayfish is a collection of Islandora 8 microservices, one of which, Homarus, provides FFmpeg as a microservice. Prior to Crayfish version 4.1.0, remote code execution may be possible in web-accessible installations of Homarus in certain configurations. The issue has been patched in `islandora/crayfish:4.1.0`. Some workarounds are available. The exploit requires making a request against the Homarus's `/convert` endpoint; therefore, the ability to exploit is much reduced if the microservice is not directly accessible from the Internet, so: Prevent general access from the Internet from hitting Homarus. Alternatively or additionally, configure a
Crayfish Allows Remote Code Execution via hypercube X-Islandora-Args Header
### Impact
_What kind of vulnerability is it? Who is impacted?_
Remote code execution is possible in web-accessible installations of hypercube.
### Patches
_Has the problem been patched? What versions should users upgrade to?_
Not yet, though no patch is neccessary if your installation of the microservices is behind a firewall. See below.
### Workarounds
_Is there a way for users to fix or remediate the vulnerability without upgrading?_
The exploit requires making a request against Hypercube's endpoints; therefore, the ability to make use of the exploit is much reduced if the microservice is not directly accessible from the Internet, s