Digital Asset
Intelligence
Security Incident · BSC Ecosystem

whaleswap.finance K value verification vulnerability

·Historical incident record

Incident Overview

The whaleswap.finance project was attacked, and at least 5946 BUSD and 5964 USDT were lost. The reason may be that there is a problem with the K value verification of the whaleswap.finance Pair contract. Whenever the user exchanges, there is a problem with the parameter magnitude passed in the K value verification, which causes the K value verification to fail. The attacker first borrows a BSC-USD through a flash loan, and then returns the flash loan when the K value verification parameter is on the order of 10000^4. The parameter verification level used in the K value verification is 10000^2, which causes the K verification to fail.

Sources & References

This record presents information attributed to the linked sources. Incident dates describe the original event, not a new report. Reported loss figures reflect the source record and are not current market valuations.

More Security Incidents

View All →
  1. Incident date
    Attack methodFlash Loan Attack
    Reported loss25,378.78 BUSD
  2. Incident date
    Target

    bDollar

    Attack methodPrice Manipulation
    Reported loss2381 WBNB
  3. Incident date
    Attack methodFlash Loan Attack
    Reported loss1,838 BNB
  4. Incident date
    Target

    LV PLUS

    Attack methodRug Pull
    Reported loss$ 1,500,000
  5. Incident date
    Target

    SNOOD

    Attack methodReentrancy Attack
    Reported loss104 ETH