Security firm Coinspect has traced $5.7 million in cryptocurrency wallet drains to a weak random number generator in CryptoJS that has existed for 12 years. The vulnerable CryptoJS.lib.WordArray.random() function provided insufficient entropy for generating recovery phrases in five affected crypto wallet applications, enabling attackers to compromise wallets in two major sweeps since late May.
Coinspect has identified CryptoJS.lib.WordArray.random() as the weak random number generator behind the Ill Bloom wallet drains. Introduced in the JavaScript cryptography library 12 years ago, the function supplied weak entropy that affected wallet apps used to generate recovery phrases. Coinspect's on-chain analysis puts the measured theft across two sweeps since late May at a lower bound of
Originally published at thehackernews.com
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