Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.
The staking and yield farming platform Bent Finance tweeted that the Bent Deployer wallet upgraded the curve pool contract from November 30, 2021 to 2021 01:09:27 PM +UTC, and the exploiter added a malicious contract that made cvxcrv and cvxcrv and The mim pool is able to hardcode user balances and then deploy another contract to mask it. The attackers stole a total of 513,000 cvxcrv LP tokens. Bent Finance later updated the incident report saying that with the help of two white hat hackers, the team analyzed the incident and concluded: "This was actually the work of an 'inside member'. After several days of hacking, the attackers finally agreed to return the funds to the following multisig address: 0xaBb8B277F49de499b902A1E09A2aCA727595b544. The attackers sold off (now bounced back) and sent us ETH and DAI, there was a slight shortfall in returning funds, but we've fixed that. So far, we have raised another 200,000 cvxcrv (~$1 million) from the community to help fill the gap. "The official said that the vulnerability has been fixed to ensure that such incidents do not occur again. Attack method (per SlowMist): Contract Vulnerability. Reported loss: -.
- chain
- —
- protocol
- Bent Finance
- bug_class
- logic
- date_occurred
- 2021-12-21
- loss_usd
- —
- source_id
- sm:bent-finance::2021-12-21