Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.
Reproducible Foundry test fork from SunWeb3Sec/DeFiHackLabs. Clone the repo, run forge test against the file path above, and replay the exploit against a mainnet fork at the historical block. Use for reproduction only — not for live targets.
With teams now using independently modified forks of ChainBridge without auditing their changes, it was only a matter of time before costly mistakes were made. In the case of Meter, their modifications to the ChainBridge code introduced a bug in the automatic wrap and unwrap of native tokens like BNB and ETH, which created an opening for a hacker to exploit. Reported loss: $4,300,000.
- chain
- ethereum
- protocol
- Meter
- bug_class
- unknown
- date_occurred
- 2022-02-06
- loss_usd
- $4,300,000
- source_id
- cs:meter::2022-02-06