CVE-2023-30590: High severity ibm planning analytics cloud vulnerability

Node.js could provide weaker than expected security, caused by the failure to generate keys after setting a private key by the generateKeys() API function. By sending a specially crafted request, an attacker could exploit this vulnerability to launch further attacks on the system.

— IBM

The generateKeys() API function returned from crypto.createDiffieHellman() only generates missing (or outdated) keys, that is, it only generates a private key if none has been set yet, but the function is also needed to compute the corresponding public key after calling setPrivateKey(). However, the documentation says this API call: "Generates private and public Diffie-Hellman key values".

The documented behavior is very different from the actual behavior, and this difference could easily lead to security issues in applications that use these APIs as the DiffieHellman may be used as the basis for application-level security, implications are consequently broad.

— NVD

The generateKeys() API function returned from crypto.createDiffieHellman() only generates missing (or outdated) keys, that is, it only generates a private key if none has been set yet.

References: https://nodejs.org/en/blog/vulnerability/june-2023-security-releases

— Red Hat