Cybersecurity Firm Halborn Warns of Zero-Day Vulnerabilities in Over 280 Blockchain Networks

A cybersecurity agency, Halborn, has not too long ago warned of a vulnerability that might put over 280 blockchain networks susceptible to zero-day exploits, doubtlessly exposing at the very least $25 billion value of crypto. The vulnerability, which Halborn has dubbed “Rab13s,” may have important penalties for the affected networks, and Halborn has already labored with some networks, comparable to Dogecoin, Litecoin, and Zcash, to institute a repair.

The warning comes after Halborn was contracted in March 2022 to conduct a safety assessment of Dogecoin’s codebase and located “a number of vital and exploitable vulnerabilities.” Halborn later found that these identical vulnerabilities “affected over 280 different networks,” which risked billions of {dollars} value of cryptocurrencies.

Halborn outlined three vulnerabilities, with essentially the most vital one permitting an attacker to “ship crafted malicious consensus messages to particular person nodes, inflicting every to close down.” These messages over time may expose the blockchain to a 51% assault, the place an attacker controls the vast majority of the community’s mining hash price or staked tokens to make a brand new model of the blockchain or take it offline.

Halborn discovered different zero-day vulnerabilities that may permit potential attackers to crash blockchain nodes by sending Distant Process Name (RPC) requests – a protocol permitting a program to speak and request providers from one other. Nonetheless, Halborn added that the chance of RPC-related exploits was decrease, because it required legitimate credentials to undertake the assault.

Halborn warned that resulting from codebase variations between networks, not all of the vulnerabilities have been exploitable on all of the networks, however at the very least one in all them could also be exploitable on every community. The cybersecurity agency stated it was not releasing additional technical particulars of the exploits resulting from their severity and added that it made a “good religion effort” to contact all affected events to reveal the potential exploits and supply remediation for the vulnerabilities.

Whereas Dogecoin, Zcash, and Litecoin have already carried out patches for the found vulnerabilities, Halborn warned that lots of of different networks may nonetheless be uncovered. The potential for these zero-day exploits to affect billions of {dollars} value of cryptocurrencies underscores the significance of sturdy cybersecurity measures and common safety audits for blockchain networks. Because the adoption of blockchain continues to develop, it’s possible that hackers will proceed to focus on vulnerabilities in these networks, making the necessity for strong safety measures all of the extra vital.



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