Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) Affecting @dfinity/auth-client package, versions >=0.20.0-beta.0 <1.0.1
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Test your applications- Snyk ID SNYK-JS-DFINITYAUTHCLIENT-6262149
- published 22 Feb 2024
- disclosed 21 Feb 2024
- credit David Dal Busco
Introduced: 21 Feb 2024
CVE-2024-1631 Open this link in a new tabHow to fix?
Upgrade @dfinity/auth-client to version 1.0.1 or higher.
Overview
@dfinity/auth-client is a JavaScript and TypeScript library to provide a simple integration with an IC Internet Identity
Affected versions of this package are vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) due to the use of an insecure seed for key pair generation in the Ed25519KeyIdentity.generate function. An attacker can compromise the private key of an identity, potentially leading to loss of funds associated with the principal on ledgers or loss of access to a canister where this principal is the controller.
Note:
This is only exploitable if the optional parameter to provide a 32 byte seed value is not used, leading to the generation of a key pair with an insecure seed.
Workaround
This vulnerability can be mitigated by invoking the function as Ed25519KeyIdentity.generate(null) to fix the broken conditional evaluation and force the function to generate a securely random seed, or by passing a securely generated randomness as a seed to Ed25519KeyIdentity.generate to force the library to use it as the seed for key pair generation.