Transaction and Block Signature Verification Bypass in Hyperledger Iroha
CVE-2018-3756

7.5HIGH

Key Information:

Vendor

Hyperledger

Status
Iroha
Vendor
CVE Published:
1 June 2018

What is CVE-2018-3756?

The vulnerability in Hyperledger Iroha versions v1.0_beta and v1.0.0_beta-1 allows an attacker to bypass the transaction and block signature verification. This flaw enables a single node to produce multiple signatures for a transaction or block using different nonces, which could subsequently be accepted by other validating nodes as distinct valid signatures. This opens up significant risks regarding transaction authenticity and could lead to potential manipulation of the blockchain.

References

https://github.com/hyperledger/iroha/releases/tag/v1.0.0_...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.