CVE-2018-3756 — HIGH (7.5) — White Hats Nepal

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Hyperledger	Iroha	1.0

Related Weaknesses (CWE)

CWE-347

References

https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2Third Party Advisory
https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2Third Party Advisory

FAQ

What is CVE-2018-3756?

CVE-2018-3756 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 tra...

How severe is CVE-2018-3756?

CVE-2018-3756 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-3756?

Check the references section above for vendor advisories and patch information. Affected products include: Hyperledger Iroha.