TravelHelper smart contract audit report .

TravelHelper smart contract audit report .

TravelHelper smart contract audit report .

TravelHelper smart contract audit report .

TravelHelper smart contract audit report .

Read Time: 2 minutes

High vulnerability issues:

Unmet condition in burnTokensForSale():-

There is a requirement (tokens > 0) statement in the burnTokensForSale() function, where tokens are the balance of crowdsale contract so it means that this function can only succeed when all tokens will be sold. In crowdsale function there is a function finalizeAndBurn() which burns the tokens first and then finalize the sale, finalizing the sale means that investors can transfer their tokens after finalizing the sale. So the bug here is that if all tokens will be sold than this function will never succeed as it will be revert in burnTokensForSale() and investors will never able to transfer their tokens.

Medium severity issues:

There was no medium severity issue found.

Low severity issues:

Solidity version should be fixed in smart contracts. For example- It should be
pragma solidity 0.4.24 and not pragma solidity ^0.4.24
Transfer Events are not emitted in activateSaleContract() function in token contract.
Final comments:-
The contract should be properly commented. It is not commented in some places. It is advised to comment the code as it is good practice.
2. Use of block number instead of timestamp is done perfectly.

You can check the unaudited and audited code along with the report in the following github repo.(https://github.com/Quillhash/TravelHelper).

Conclusion:-
All the changes suggested by our team has been applied by TravelHelper. So their contracts are secure now as of our investigation and their audited contracts are already deployed on the main net.

We’re available for smart contract development and security auditing work. You can fill this form https://quillhash.typeform.com/to/KQ5Hhm to get in touch.


At QuillHash, we understand the Potential of Blockchain and have a good team of developers who can develop any blockchain applications like Smart Contracts, dApps,Smart Coins, DeFi, DEX on the any Blockchain Platform like Ethereum, EOS and Hyperledger.

To be up to date with our work, Join Our Community :-

Telegram | Twitter | Facebook | LinkedIn


At QuillHash, we understand the Potential of Blockchain and have a good team of developers who can develop any blockchain applications like Smart Contracts, dApps,Smart Coins, DeFi, DEX on the any Blockchain Platform like Ethereum, EOS and Hyperledger.

To be up to date with our work, Join Our Community :-

Telegram | Twitter | Facebook | LinkedIn

3,015 Views

Blockchain for dog nose wrinkles' Ponzi makes off ~$127M🐶

Project promised up to 150% returns on investment in 100 days, raising about 166.4 billion South Korean won — or about $127 million — from 22,000 people.

Latest blogs for this week

Understanding Fuzzing and Fuzz Testing: A Vital Tool in Web3 Security

Read Time: 5 minutes When it comes to smart contracts, ensuring the robustness and security of code is paramount. Many techniques are employed to safeguard these contracts against vulnerabilities
Read More

How EigenLayer’s Restaking Enhances Security and Rewards in DeFi

Read Time: 7 minutes Decentralized finance (DeFi) relies on Ethereum staking to secure the blockchain and maintain consensus. Restaking allows liquid staking tokens to be staked with validators in
Read More

ERC 404 Standard: Everything You Need to Know

Read Time: 7 minutes Introduction Ethereum has significantly shaped the crypto world with its introduction of smart contracts and decentralized applications (DApps). This has led to innovative developments in
Read More

DNS Attacks:  Cascading Effects and Mitigation Strategies

Read Time: 8 minutes Introduction DNS security is vital for a safe online space. DNS translates domain names to IP addresses, crucial for internet functionality. DNS ensures unique name-value
Read More

EIP-4844 Explained: The Key to Ethereum’s Scalability with Protodanksharding

Read Time: 7 minutes Introduction  Ethereum, the driving force behind dApps, has struggled with scalability. High fees and slow processing have limited its potential. They have kept it from
Read More

QuillAudits Powers Supermoon at ETH Denver!

Read Time: 4 minutes Calling all the brightest minds and leaders in the crypto world! Are you ready to build, connect, and innovate at the hottest event during ETH
Read More

Decoding the Role of Artificial Intelligence in Metaverse and Web3

Read Time: 7 minutes Introduction  Experts predict a transformative shift in global software, driven by AI and ML, marking the dawn of a new era. PwC predicts AI will
Read More

Transforming Assets: Unlocking Real-World Asset Tokenization

Read Time: 7 minutes In the blockchain, real-world assets (RWAs) are digital tokens that stand for tangible and conventional financial assets, including money, raw materials, stocks, and bonds. As
Read More
Scroll to Top

Become a Quiffiliate!
Join our mission to safeguard web3

Sounds Interesting, Right? All you have to do is:

1

Refer QuillAudits to Web3 projects for audits.

2

Earn rewards as we conclude the audits.

3

Thereby help us Secure web3 ecosystem.

Total Rewards Shared Out: $200K+