VERDICT —UNRATED
Verdict pending. Auto-ingested incidents are reviewed before a public verdict is rendered.
Root cause
Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.
▰ PROOF OF CONCEPT
DEFIHACKLABS
src/test/2021-05/BurgerSwap_exp.sol
view forked test on github ↗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.
Forensic narrative
According to The Block Research’s Igor Igamberdiev, an attacker used flash loans to exploit the protocol for $7.2 million. Flash loans are blockchain-based loans where large amounts of tokens are borrowed, used for some purpose and repaid — all in the same transaction. Reported loss: $7,200,000.
Primary source
https://www.theblockcrypto.com/post/106457/missing-line-of-code-leads-to-7-2-million-exploit-of-dex-burgerswap ↗Sourced from
chainsec
Technical record
- chain
- —
- protocol
- BurgerSwap
- bug_class
- flashloan
- date_occurred
- 2021-05-28
- loss_usd
- $7,200,000
- source_id
- cs:burgerswap::2021-05-28
Related — same bug class· flashloan