John Lennon Info
John Lennon coin is designed as an ideal cryptocurrency investment for anyone who aims to make the greatest profit possible in the shortest time.
TrustNet Score
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Real-Time Threat Detection
Real-time threat detection, powered by Cyvers.io,
is currently not
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for this project.
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Summary and Final Words
No crucial issues found
The contract does not contain issues of high or medium criticality. This means that no known vulnerabilities were found in the source code.
Contract owner cannot mint
It is not possible to mint new tokens.
Contract owner cannot blacklist addresses.
It is not possible to lock user funds by blacklisting addresses.
Contract owner cannot set high fees
The fees, if applicable, can be a maximum of 25% or lower. The contract can therefore not be locked. Please take a look in the comment section for more details.
Token transfer can be locked
Owner can lock user funds with owner functions.
Token cannot be burned
There is no burning within the contract without any allowances
Ownership is not renounced
The owner retains significant control, which could potentially be used to modify key contract parameters.
Scope of Work
This audit encompasses the evaluation of the files listed below, each verified with a SHA-1 Hash. The team referenced above has provided the necessary files for assessment.
The auditing process consists of the following systematic steps:
- Specification Review: Analyze the provided specifications, source code, and instructions to fully understand the smart contract's size, scope, and functionality.
- Manual Code Examination: Conduct a thorough line-by-line review of the source code to identify potential vulnerabilities and areas for improvement.
- Specification Alignment: Ensure that the code accurately implements the provided specifications and intended functionalities.
- Test Coverage Assessment: Evaluate the extent and effectiveness of test cases in covering the codebase, identifying any gaps in testing.
- Symbolic Execution: Analyze the smart contract to determine how various inputs affect execution paths, identifying potential edge cases and vulnerabilities.
- Best Practices Evaluation: Assess the smart contracts against established industry and academic best practices to enhance efficiency, maintainability, and security.
- Actionable Recommendations: Provide detailed, specific, and actionable steps to secure and optimize the smart contracts.
A file with a different Hash has been intentionally or otherwise modified after the security review. A different Hash may indicate a changed condition or potential vulnerability that was not within the scope of this review.
Final Words
The following provides a concise summary of the audit report, accompanied by insightful comments from the auditor. This overview captures the key findings and observations, offering valuable context and clarity.
Ownership Privileges
- The owner can update any arbitrary address as the pancake swap address.
- The owner can whitelist addresses from fees.
- The owner can remove the addresses from the whitelisted addresses list.
Note - This Audit report consists of a security analysis of the John Lennon Token smart contract. This analysis did not include functional testing (or unit testing) of the contract’s logic. Moreover, we only audited one token contract for the John Lennon team. Other contracts associated with the project were not audited by our team. We recommend investors to do their own research before investing.
Files and details
Functions
public
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State variables
public
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Total lines
of code
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Capabilities
Hover on items
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Functions
public
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State variables
public
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Total lines
of code
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Capabilities
Hover on items
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Functions
public
/
State variables
public
/
Total lines
of code
/
Capabilities
Hover on items
/
Functions
public
/
State variables
public
/
Total lines
of code
/
Capabilities
Hover on items
/
Functions
public
/
State variables
public
/
Total lines
of code
/
Capabilities
Hover on items
/
Findings and Audit result
medium Issues | 1 findings
Pending
#1 medium Issue
The owner can lock funds.
The owner can update the pancake swap address to any arbitrary address, as this can lock the user from buying and selling if the owner has set any arbitrary address in this function. It is recommended that the pair address should not be changed after the initial deployment.
low Issues | 2 findings
Pending
#1 low Issue
Floating pragma solidity version
Adding the constant version of solidity is recommended, as this prevents the unintentional deployment of a contract with an outdated compiler that contains unresolved bugs.
Pending
#2 low Issue
Missing events.
Emit all the critical parameter changes.
optimization Issues | 1 findings
Pending
#1 optimization Issue
Public function that could be declared external (external-function)
Use the `external` attribute for functions never called from the contract.
informational Issues | 1 findings
Pending
#1 informational Issue
Functions that are not used (dead-code)
Remove unused functions.