CVE-2018-5382

{"id": "CVE-2018-5382", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 3.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 1.8}]}, "published": "2018-04-16T14:29:01.047", "references": [{"url": "http://www.securityfocus.com/bid/103453", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cret@cert.org"}, {"url": "https://access.redhat.com/errata/RHSA-2018:2927", "tags": ["Third Party Advisory"], "source": "cret@cert.org"}, {"url": "https://www.bouncycastle.org/releasenotes.html", "tags": ["Release Notes", "Vendor Advisory"], "source": "cret@cert.org"}, {"url": "https://www.kb.cert.org/vuls/id/306792", "tags": ["Third Party Advisory", "US Government Resource"], "source": "cret@cert.org"}, {"url": "https://www.oracle.com/security-alerts/cpuoct2020.html", "tags": ["Third Party Advisory"], "source": "cret@cert.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-354"}]}, {"type": "Secondary", "source": "cret@cert.org", "description": [{"lang": "en", "value": "CWE-327"}]}], "descriptions": [{"lang": "en", "value": "The default BKS keystore use an HMAC that is only 16 bits long, which can allow an attacker to compromise the integrity of a BKS keystore. Bouncy Castle release 1.47 changes the BKS format to a format which uses a 160 bit HMAC instead. This applies to any BKS keystore generated prior to BC 1.47. For situations where people need to create the files for legacy reasons a specific keystore type \"BKS-V1\" was introduced in 1.49. It should be noted that the use of \"BKS-V1\" is discouraged by the library authors and should only be used where it is otherwise safe to do so, as in where the use of a 16 bit checksum for the file integrity check is not going to cause a security issue in itself."}, {"lang": "es", "value": "El almac\u00e9n de claves BKS por defecto utiliza un HMAC de s\u00f3lo 16 bits, lo que puede permitir a un atacante comprometer la integridad de un almac\u00e9n de claves BKS. La versi\u00f3n 1.47 de Bouncy Castle cambia el formato BKS a un formato que utiliza un HMAC de 160 bits. Esto se aplica a cualquier almac\u00e9n de claves BKS generado antes de BC 1.47. Para las situaciones en las que la gente necesita crear los archivos por razones de legado, se introdujo un tipo de almac\u00e9n de claves espec\u00edfico \"BKS-V1\" en la versi\u00f3n 1.49. Hay que tener en cuenta que los autores de la biblioteca desaconsejan el uso de \"BKS-V1\" y que s\u00f3lo debe utilizarse cuando sea seguro hacerlo, como cuando el uso de una suma de comprobaci\u00f3n de 16 bits para la comprobaci\u00f3n de la integridad del archivo no vaya a causar un problema de seguridad en s\u00ed mismo"}], "lastModified": "2022-04-20T15:31:06.623", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-java-crytography-api:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C6428A9C-47F6-48F9-9388-F4FFDDBF7420", "versionEndIncluding": "1.49"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:satellite:6.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FB283C80-F7AF-4776-8432-655E50D7D65B"}, {"criteria": "cpe:2.3:a:redhat:satellite_capsule:6.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "461407B5-C167-4DE1-A934-FD5ADFB4AD4E"}], "operator": "OR"}]}], "sourceIdentifier": "cret@cert.org"}