Solidity

Solidity: Cross Reentrancy Attack

The vulnerability known as Reetrancy allows the same function to be called over and over again. There is a variant that causes a second function to be called. It is known by the name of Reetraccy Cruzado.

Solidity: Revert DoS Attack

Smart contracts can be victims of denial-of-service attacks and blocked in such a way that millions of dollars are lost and can never be recovered.

Solidity: Denial Due to Gas Limit

Denial of service attacks are not necessarily "attacks", they can occur due to poor implementations by the contract developer.

Solidity: Vulnerabilities With External Calls

A smart contract can not only receive transactions from a user, it can also be another smart contract that makes the call. Let's look at vulnerabilities that can be exploited if calls between contracts are misused.

Solidity: Vulnerabilities With Global Variables

Global variables in Solidity are essential in the development of smart contracts, but they can expose serious vulnerabilities if not used correctly.

Solidity: Good Practices

There are some measures you can apply to avoid security problems in contracts and not expose vulnerabilities when developing them.

Solidity: Reetrancy Attack

One of the most common security problems is called Reetrancy, which causes recursive calls to the same function of a contract until the funds are emptied.

Solidity: Self-Destruct Attack

Transfers and sending ETH can be detrimental to a contract. Many attacks not only seek to steal funds, they may also seek to cause damage and millions of dollars in loss.

Solidity: Storage vulnerabilities

Security issues can be related to various aspects of smart contract development. One of them is the type of variable to store data.