security

Smart Contracts: Privilege Escalation and Access Control

Ensuring appropriate access control, which permits only authorized users to carry out sensitive operations, is one of the most important components of smart contract security. If this is not done, privilege escalation may occur, giving attackers unapproved access to important contract functionalities.

Typical Problems with Access Control

** Missing onlyOwner Checks: If important functionalities are not restricted to the contract owner, everyone may be exposed.

** Improper Role-Based Access Control (RBAC): Security flaws can be caused by roles that are too permissive or by permissions that are not specified correctly.

** Exposed Admin Functions: If privileged functions (such upgradeability and pausing) are left exposed, they can be exploited.

 #Solana

Best practices


✔️ For standardized and safe permission management, use AccessControl or Ownable from OpenZeppelin.


✔️ Adhere to the principle of least privilege by granting users and roles only the essential permissions.


✔️ Conduct a thorough audit and test to make sure there are no vulnerabilities in place. 


#BlockchainSecurity #SmartContracts #Web3 #CyberSecurity #Solidity