🔥 💀 [ Critical ] bx seed generates insecure seed phrases for bx 3.x

[DanielJoyce]

https://milksad.info/

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39910

TL;DR;

bx seed command for bx 3.x uses Mersenne Twister limited to 32 bits of entropy, leading to brute-forceable seed phrases for wallets. Generate a new wallet ( using a more secure tool, LOL ), and transfer funds ASAP.

[evoskuil]

RTFM

[0x15]

i rtfm'd, now what bitcoinbook/bitcoinbook@76c5ba8#diff-7a291d80bf434822f6a737f3e564be6a67432e2f3f12669cf0469aedf56849bbR99

[evoskuil]

You’re in the wrong repo, that is neither the bx documentation nor a Libbitcoin repo. https://github.com/libbitcoin/libbitcoin-explorer/wiki

[0x15]

somebody should tell whoever wrote that that he lost people a million bucks then

[evoskuil]

People are responsible for their own security, and of course - to RTFM.

[evoskuil]

The command works as documented and intended. The book is dated, the commit is around 8 years old. Maybe make a PR into the book repo and discuss with its author.