PT-2018-16177 · Hyperledger · Hyperledger Iroha

Published 2018-06-01 · Updated 2018-07-18 · CVE-2018-3756

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Hyperledger Iroha versions v1.0 beta through v1.0.0 beta-1

Description The issue allows a single node to bypass transaction and block signature verification in the transaction and block validator. This can be achieved by signing a transaction and/or block multiple times, each with a random nonce, and having other validating nodes accept them as separate valid signatures.

Recommendations For Hyperledger Iroha versions v1.0 beta through v1.0.0 beta-1, as a temporary workaround, consider restricting the ability of a single node to sign transactions and blocks multiple times to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2018-3756

Affected Products

Hyperledger Iroha

References · 3

• https://osv.dev/vulnerability/CVE-2018-3756 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-3756 · Security Note
• https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2 · Note