Vanguard

First Flight #56
Beginner FriendlyDeFiFoundry
0 EXP
Submission Details
Impact: high
Likelihood: medium

The key vulnerability is the owner's unrestricted access, which could be mitigated with multi-sig or timelock. Also, the reliance on "block numbers for phase timing" is a risk that may be manipulated.

Author Revealed upon completion

Root + Impact

Description

  • Describe the normal behavior in one or more sentences

  • Explain the specific issue or problem in one or more sentences

the Vanguard Uniswap V4 hook implements a phased fee structure for token launches, with configurable limits, cooldowns, and penalties for excessive selling during the initial launch period. It also intercepts swap operations to enforce these dynamic fees.

Risk

Likelihood:

  • Reason 1 // Describe WHEN this will occur (avoid using "if" statements)

  • Reason 2

Impact:

  • Impact 1 The owner's responsibilities include modifying fee parameters and monitoring launch progress. So, a likelihood reason might be when the owner modifies fees or based on specific launch phases.

  • Impact 2 manipulation of block numbers for phase timing may lead to unfair launch conditions

Proof of Concept

the owner could manipulate the block numbers to prematurely end the initial launch phase, potentially allowing excessive selling before the intended time, as discussed.

Recommended Mitigation

a key mitigation would be to implement stricter access controls for any specific launch phases you mentioned, ensuring only authorized individuals can interact with them. Additionally, continuous monitoring for potential vulnerabilities and regular audits are crucial.
A key mitigation could be implementing a robust timelock on the owner's ability to modify parameters, ideally one that doesn't rely solely on block numbers, as mentioned in the "Known Issues." Another could be third-party oversight or a decentralized governance structure to prevent malicious parameter changes.

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