Miner.farm Crypto Currency Community Forum
Browse and post your favorite coin/crypto news, miner.farm and PiMP OS updates and announcements, mining guides, overclocking tips, and more...
Note: To change your forum username: login, click your avatar icon (top right?), Edit Profile. Change the "full name" field to your preferred username.
- Configuring the rig: Help / Getting started videos
- How to fix problems: Troubleshooting guides
- How to mine different algos / setup wallets: Strategy guides
- Keys and Downloads: your Miner.farm account page
- Post your rig pics to the rig showcase so we can all check out your awesome builds!
- Please subscribe/like/follow us on social media
Report Claims 34,000 Ethereum Smart Contracts Are Vulnerable to Bugs
Over 34,000 ethereum smart contracts containing $4.4 million in ETH may be vulnerable to exploitation. That’s the conclusion reached by a quintet of researchers hailing from Singapore and the UK. Their technical report, which is currently undergoing peer review, suggests that millions of dollars in ether may be at risk from poorly coded smart contracts that contain a variety of bugs.
Smart Contracts Are Only as Smart as Their Creator
“Finding The Greedy, Prodigal, and Suicidal Contracts at Scale” is the provocative title of a research paper submitted by British and Singaporean students last week. Its authors have dived deep into ethereum smart contracts, “finding contracts that either lock funds indefinitely, leak them carelessly to arbitrary users, or can be killed by anyone”. This latter flaw is precisely what happened to Parity last November.
The dangers of relying on smart contracts that have not been independently audited are well-documented. In the past year, $500 million has been lost due to bad code, and around half of that figure involved ethereum. The most notorious case was the Parity bug which led to $168 million of ether being rendered permanently inaccessible, though there have been plenty of smaller incidents where inexperienced or inattentive developers have been caught out.
A Small Drop in a Big Ocean
The authors of the report claim to have used a tool to analyze almost one million smart contracts, of which 34,200 were found to be vulnerable, with 2,365 of these stemming from distinct projects. That means that around 3.4% of all smart contracts are potentially vulnerable to being hacked, broken, or otherwise exploited. Of the contracts that the research team flagged as being exploitable, “the maximal amount of Ether that could have been withdrawn…is nearly 4,905 Ether” worth $4.4 million.
The report continues: “In addition, 6,239 Ether (7.5 million US dollars) is locked inside posthumous contracts currently on the blockchain, of which 313 Ether (379,940 US dollars) have been sent to dead contracts after they have been killed.” One thing the report deliberately omits is the identity of the smart contracts flagged as being at risk. But with almost 1 in 20 contracts vulnerable, and a jackpot of over $4.5 million in ether up for grabs, determined attackers have every incentive to put this research to the test.
What do you think can be done to make smart contracts safer? Let us know in the comments section below.
Images courtesy of Shutterstock.
Need to calculate your bitcoin holdings? Check our tools section.
The post Report Claims 34,000 Ethereum Smart Contracts Are Vulnerable to Bugs appeared first on Bitcoin News.
We promise to keep your email safe and never spam you.
© 2014-2021 Miner.farm | By Miners, For Miners | Portable Instant Mining Platform, LLC