CVE-2018-3756

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "support@hackerone.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:hyperledger:iroha:1.0:beta:*:*:*:*:*:*", "matchCriteriaId": "04452B70-1781-420C-BB4F-5065FA872E81", "vulnerable": true}, {"criteria": "cpe:2.3:a:hyperledger:iroha:1.0.0:beta1:*:*:*:*:*:*", "matchCriteriaId": "7D78C832-465B-4241-8FCF-D3906DE52409", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Hyperledger Iroha en versiones v1.0_beta y v1.0.0_beta-1 es vulnerable a una omisi\u00f3n de verificaci\u00f3n de firma de transacci\u00f3n y bloqueo en el validador de transacci\u00f3n y bloqueo. Esto permite que un \u00fanico nodo firme una transacci\u00f3n y/o bloquee m\u00faltiples veces, cada una con un nonce aleatorio, y haga que otros nodos en validaci\u00f3n los acepten como firmas v\u00e1lidas separadas."}], "id": "CVE-2018-3756", "lastModified": "2026-06-17T01:57:46.687", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-06-01T19:29:00.363", "references": [{"source": "support@hackerone.com", "tags": ["Third Party Advisory"], "url": "https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/hyperledger/iroha/releases/tag/v1.0.0_beta-2"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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