Hyperledger Fabric is a blockchain platform designed for enterprise environments. It is a permissioned platform that provides privacy and confidentiality for transactions.
Despite the security improvements Hyperledger Fabric provides, deployments still require careful configuration and monitoring to ensure they operate securely. Here, we will examine different threats that Hyperledger Fabric operators should consider and discuss how to mitigate them.
These are the critical security threats in Hyperledger Fabric -
Denial of Service (DoS)
MSP
Compromise
Consensus
Manipulation
Private Key Attacks
Smart Contract
Encryption
A Denial-of-Service (DoS) attack shuts down a network or a machine, making it inaccessible to its intended users. Usually, it interrupts the host temporarily, connected to the internet.
Mainly, these attack credit card gateways, banks, etc. Triggering many advertisements on the web page requests creates a load on the web server.
This threat attacks the blockchain network to lock the credential information. The attacker will ask for money, known as ransomware, in exchange for data.
The data might be encrypted that will unlock only with a specific crypto key. It is like locking an owner in the house and asking for money to unlock it.
Increased Bandwidth
Bullet-proof your network hardware configurations
Hyperledger Fabric uses Crash Fault Tolerant (CFT) consensus algorithms. For this, it can't accept any malicious threat. Currently going on Byzantine fault Tolerant (BFT) algorithms, it can accept up to 1/3 malicious of the existing network.
But with the consensus algorithms, early virus detection can mitigate this threat.
Deploying a Web Application Firewall
Attack Surface Reduction (ASR)
The cryptocurrency consists of public and private keys that must encrypt and decrypt the data. They are meant to be handled securely and effectively.
If a public key gets exposed by the attacker will lead to having a private key used to decrypt the data. The attacker can easily decrypt and can steal or manipulate the information.
In cryptocurrencies, where Hyperledger Fabric can compromise enterprise logic and network execution, the attack on smart contracts is easier than others.
Also, common errors can occur from handling concurrency. The app must be considered for outer security. With this, the performance and use of the smart contract should be observed once deployed to detect strange behavior.
Here are some common mitigation strategies you can follow to prevent security threatsPreventive benchmarks to mitigate these security threats are components of a secure deployment.
It is vital to observe the arrangements and security of the P2P network constantly. Many threats can be caught by connecting data across the blockchain P2P network, threat brilliance, and association infrastructure.
DoS
MSP Compromise
Consensus Manipulation
Data Source
Slow down network performance
Heavy traffic to a network server
No access to the user’s data
Reduce dependency, faith, and responsibility of nodes connecting to a network
Exploit phishing
Reduce the proof of work mechanism
Private Key Attacks
Smart Contract Encryption
Unwanted transactions, encryption, and decryption occur
Costs millions of dollars
Financial details of businesses
When a contract transmits ether to an anonymous address
Proactive measures to mitigate these security threats are part of a secure deployment. It is vital to monitor the network's performance and security continuously. These threats can only be detected by correlating data across the blockchain network, company infrastructure, and threat intelligence providers.
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