USEON
0xE4D98E28444054Cb51E207C9517948a11ced55f5 0xE4D9...ed55f5

Static analysis Dynamic analysis Symbolic Execution SWC check

No description provided

Contract address
0xE4D9...ed55f5
Network Binance Smart Chain
License MIT
Compiler v0.8.9 v0.8.9+commit.e5eed63a
Type N/A
Language Solidity
Request date 2022/07/05
Revision date 2022/07/06
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

  • Owner
    • can take out contract eth balance with recover function
    • can take out contract tokens

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

96

State variables
public

14

Total lines
of code

1203

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 speciïŹcation 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

Take out tokens

UERN.sol

L985

Description

Owner is able to take out contract tokens. We recommend you to prevent passing own contract address

low Issues

Pending

#1 Issue

Local variables shadowing (shadowing-local)

UERN.sol

L936

Description

Rename the local variables that shadow another component.

Pending

#2 Issue

Missing Events Arithmetic (events-maths)

UERN.sol

L1001-1005

L1012-1018

L1020-1026

Description

Emit an event for critical parameter changes.

Pending

#3 Issue

Missing Zero Address Validation (missing-zero-check)

UERN.sol

L1045

L1050

Description

Check that the address is not zero.

informational Issues

Pending

#1 Issue

Functions that are not used (dead-code)

UERN.sol

L27-30

L415-423

L592-594

L608-611

L716-719

L707-711

L687-693

L675-682

L698-702

L722-725

L729-733

Description

Remove unused functions.

Pending

#2 Issue

Low level calls (low-level-calls)

UERN.sol

L1162-1202

Description

Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence.

Pending

#3 Issue

Unused state variables (unused-state)

UERN.sol

L670

Description

Remove unused state variables.

optimization Issues

Pending

#1 Issue

State variables that could be declared constant (constable-states)

UERN.sol

L977

Description

Add the `constant` attributes to state variables that never change.

Pending

#2 Issue

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

UERN.sol

L222-224

L230-232

L247-249

L273-276

L281-283

L292-295

L310-318

L332-335

L351-354

L650-653

L659-663

L984-986

Description

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

Diagrams

Disclaimer

SolidProof.io reports are not, nor should be considered, an “endorsement” or “disapproval” of any particular project or team. These reports are not, nor should be considered, an indication of the economics or value of any “product” or “asset” created by any team. SolidProof.io do not cover testing or auditing the integration with external contract or services (such as Unicrypt, Uniswap, PancakeSwap etc’...)

SolidProof.io Audits do not provide any warranty or guarantee regarding the absolute bug- free nature of the technology analyzed, nor do they provide any indication of the technology proprietors. SolidProof Audits should not be used in any way to make decisions around investment or involvement with any particular project. These reports in no way provide investment advice, nor should be leveraged as investment advice of any sort.

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.