MarkElon
0xa1987bcCd24686a779d1EfB5b08A31fdC113C781 0xa198...13C781

Static analysis Dynamic analysis Symbolic Execution SWC check

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Contract address
0xa198...13C781
Network Binance Smart Chain
License MIT
Compiler v0.8.9 v0.8.9+commit.e5eed63a
Type N/A
Language Solidity
Request date 2023/08/07
Revision date 2023/08/07
Critical
Passed
High
Passed

Owner privileges

Crucial issues found The contract does contain issues of high or medium criticality. In some circumstances, the Contract may not function as intended and may pose a safety risk.
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.
Contract cannot be locked Owner cannot lock any user funds.
Token cannot be burned There is no burn function within the contract.
Ownership is not renounced Contract can be manipulated by owner functions.
Comments

Ownership Privileges

  • The owner can enable trading only once.
  • The owner can transfer tokens to multiple addresses at once.
  • The owner can enable/disable swapping.
  • The owner can rescue swap tokens to the marketing wallet address.
  • The owner can set buy, sell, and transfer fees of not more than 10%.
  • The owner can whitelist addresses from fees.
  • The owner can set the automated pair address.
  • The owner can update the marketing, dev, and reward wallet address.
  • The owner can reset all taxes to zero.
  • The contract balance of the token can be withdrawn automatically to the marketing wallet address if the rescueSwap is set to true even after the ownership of the token is renounced.

Note - This Audit report consists of a security analysis of the MarkElon 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 MarkElon team. Other contracts associated with the project were not audited by our team. We recommend investors do their own research before investing.

Audit Scope

This audit covered the following files listed below with a SHA-1 Hash. The above token Team provided us with the files that needs to be tested.

We will verify the following claims:
  • Correct implementation of Token standard
  • Deployer cannot mint any new tokens
  • Deployer cannot burn or lock user funds
  • Deployer cannot pause the contract
  • Overall checkup (Smart Contract Security)
The auditing process follows a routine series of steps:
  • Review of the specifications, sources, and instructions provided to SolidProof to make sure we understand the size, scope, and functionality of the smart contract.
  • Manual review of code, which is the process of reading source code line-by-line in an attempt to identify potential vulnerabilities.
  • Comparison to specification, which is the process of checking whether the code does what the specifications, sources, and instructions provided to SolidProof describe.
  • Test coverage analysis, which is the process of determining whether the test cases are actually covering the code and how much code is exercised when we run those test cases.
  • Symbolic execution, which is analysing a program to determine what inputs causes each part of a program to execute.
  • Best practices review, which is a review of the smart contracts to improve efficiency, effectiveness, clarify, maintainability, security, and control based on the established industry and academic practices, recommendations, and research.
  • Specific, itemized, actionable recommendations to help you take steps to secure your smart contracts.

A file with a different Hash has been modified, intentionally or otherwise, after the security review. A different Hash could be (but not necessarily) an indication of a changed condition or potential vulnerability that was not within the scope of this review.

Functions
public

98

State variables
public

29

Total lines
of code

1274

Capabilities
Hover on items

Audit Details

Throughout the review process, care was taken to evaluate the repository for security-related issues, code quality, and adherence to specification and best practices. To do so, reviewed line-by-line by our team of expert pentesters and smart contract developers, documenting any issues as there were discovered.

Risk represents the probability that a certain source-threat will exploit vulnerability, and the impact of that event on the organization or system. Risk Level is computed based on CVSS version 3.0.

medium Issues

Pending

#1 Issue

Transfer of tokens without enabling trade.

MARKELON.sol

L1109-1111

Description

The trading needs to be enabled by the owner in order for regular users to transfer tokens. On the contrary, the owner can authorize addresses manually and those addresses will be able to trade tokens. This functionality can be exploited in the following way, For example, there is a presale and the wallets used for the presale can be authorized by the owner. All the tokens obtained can be consolidated into a final wallet address and facilitate trading and selling of the acquired tokens, the last wallet address can be authorized.

low Issues

Pending

#1 Issue

Local variables shadowing (shadowing-local)

MARKELON.sol

L930

L934

Description

Rename the local variables that shadow another component.

Pending

#2 Issue

Missing Events Arithmetic (events-maths)

MARKELON.sol

L1038-1045

L1047-1054

L1056-1063

Description

Emit an event for critical parameter changes.

Pending

#3 Issue

Missing Zero Address Validation (missing-zero-check)

MARKELON.sol

L1082

L1087

L1092

Description

Check that the address is not zero.

Pending

#4 Issue

Floating pragma solidity version

MARKELON.sol

L3

Description

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

#5 Issue

Remove safemathint and uint library

MARKELON.sol

L651-717

Description

compiler version above 0.8.0 has the ability to control arithmetic overflow/underflow, It is recommended to remove the unwanted code in order to avoid high gas fees.

informational Issues

Pending

#1 Issue

Unused state variables (unused-state)

MARKELON.sol

L653

Description

Remove unused state variables.

Pending

#2 Issue

Unused write (write-after-write)

MARKELON.sol

L1238

Description

Fix or remove the writes.

optimization Issues

Pending

#1 Issue

Public function that could be declared external (external-function)

MARKELON.sol

L205-207

L213-215

L230-232

L237-239

L256-259

L264-266

L275-278

L293-301

L315-318

L334-337

L614-616

L633-636

L1220-1225

Description

Use the `external` attribute for functions never called from the contract.

Diagrams

Disclaimer

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SolidProof.io Reports represent an extensive auditing process intending to help our customers increase the quality of their code while reducing the high level of risk presented by cryptographic tokens and blockchain technology. Blockchain technology and cryptographic assets present a high level of ongoing risk. SolidProof’s position is that each company and individual are responsible for their own due diligence and continuous security. SolidProof in no way claims any guarantee of security or functionality of the technology we agree to analyze.