What is CVE-2018-3756?

CVE-2018-3756 is a high-severity vulnerability in Hyperledger Iroha, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2018-06-01.

How severe is CVE-2018-3756?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Hyperledger Iroha

CVE-2018-3756

Hyperledger Iroha versions v1.0_beta and v1.0.0_beta-1 are vulnerable to transaction and block signature verification bypass in the transaction and block validator allowing a single node to sign a transaction and/or block multiple times, each with a random nonce, and have other validating nodes accept them as separate valid signatures.

EPSS: 0.008 (53.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Hyperledger Iroha — versions 1.0, 1.0.0
N/a — versions n/a

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

support@hackerone.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2018-3756?: CVE-2018-3756 is a high-severity vulnerability in Hyperledger Iroha, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2018-06-01.
How severe is CVE-2018-3756?: High severity. CVSS v3 base score is 7.5 out of 10.