Vulnerability CVE-2024-48930
Published: 2024-10-21

Description:
secp256k1-node is a Node.js binding for an Optimized C library for EC operations on curve secp256k1. In `elliptic`-based version, `loadUncompressedPublicKey` has a check that the public key is on the curve. Prior to versions 5.0.1, 4.0.4, and 3.8.1, however, `loadCompressedPublicKey` is missing that check. That allows the attacker to use public keys on low-cardinality curves to extract enough information to fully restore the private key from as little as 11 ECDH sessions, and very cheaply on compute power. Other operations on public keys are also affected, including e.g. `publicKeyVerify()` incorrectly returning `true` on those invalid keys, and e.g. `publicKeyTweakMul()` also returning predictable outcomes allowing to restore the tweak. Versions 5.0.1, 4.0.4, and 3.8.1 contain a fix for the issue.

Type:

CWE-354

 (Improper Validation of Integrity Check Value)

 References:
https://github.com/cryptocoinjs/secp256k1-node/security/advisories/GHSA-584q-6j8j-r5pm
https://github.com/cryptocoinjs/secp256k1-node/commit/8bd6446e000fa59df3cda0ae3e424300747ea5ed
https://github.com/cryptocoinjs/secp256k1-node/commit/9a15fff274f83a6ec7f675f1121babcc0c42292f
https://github.com/cryptocoinjs/secp256k1-node/commit/e256905ee649a7caacc251f7c964667195a52221
https://github.com/cryptocoinjs/secp256k1-node/blob/6d3474b81d073cc9c8cc8cfadb580c84f8df5248/lib/elliptic.js#L17-L19
https://github.com/cryptocoinjs/secp256k1-node/blob/6d3474b81d073cc9c8cc8cfadb580c84f8df5248/lib/elliptic.js#L37-L39
Copyright 2024, cxsecurity.com

 

Back to Top