Jump Crypto supporting BNB Chain detects critical vulnerability

Recently (February 10), BNB Chain announced that Jump Crypto’s technical team helped discover a serious vulnerability in this ecosystem.

Jump Crypto supporting BNB Chain detects critical vulnerability
Jump Crypto supporting BNB Chain detects critical vulnerability

On his personal Twitter, CZ – CEO of the Binance exchange – posted a status line thanking the Jump team for the move.

β€œThanks to the Jump team for discovering and reporting this vulnerability. They have an amazing technical team. We appreciate this support.”

According to a BNB Core team representative, the above vulnerability was reported by Jump on February 7 and was fixed after a few hours.

Yesterday (February 11), the technical team of Jump Crypto also published a detailed report related to the above issue.

Accordingly, the core of the problem lies in the BNB Beacon Chain (formerly Binance Chain). This vulnerability allows unlimited minting of tokens on BNB Chain (the new name for Binance Smart Chain).

The Beacon Chain version of BNB is built on the same framework as the Cosmos SDK toolkit. However, the BNB Beacon Chain has not updated several key changes in the Cosmos SDK recently, resulting in inconsistencies with the current BNB Chain.

The version of code used by BNB Beacon Chain has differences in the way data is transmitted (Messaging) between chains, thus opening a loophole for hackers to attack and mint a bunch of tokens.

This is not the first time that the interaction between Beacon Chain and BNB Chain has had problems. Previously, the bridge of the BNB Beacon Chain was also attacked, with damage ranging from 586 million USD.

It can be said that Jump’s support move this time is very necessary and timely, helping to avoid unnecessary damage to user property.

Synthetic Kyptos

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