A vulnerability has been identified in Node.js version 20, affecting users of the experimental permission model when the –allow-fs-read flag is used with a non-* argument. This flaw arises from an inadequate permission model that fails to restrict file watching through the fs.watchFile API. As a result, malicious actors can monitor files that they do not have explicit read access to.
Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Nodejs | Ubuntu | bionic | * |
| Nodejs | Ubuntu | kinetic | * |
| Nodejs | Ubuntu | lunar | * |
| Nodejs | Ubuntu | trusty | * |
| Nodejs | Ubuntu | xenial | * |
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: