{ "id": "CVE-2021-20501", "sourceIdentifier": "psirt@us.ibm.com", "published": "2021-04-21T12:15:08.303", "lastModified": "2022-07-12T17:42:04.277", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "IBM i 7.1, 7.2, 7.3, and 7.4 SMTP allows a network attacker to send emails to non-existent local-domain recipients to the SMTP server, caused by using a non-default configuration. An attacker could exploit this vulnerability to consume unnecessary network bandwidth and disk space, and allow remote attackers to send spam email. IBM X-Force ID: 198056." }, { "lang": "es", "value": "IBM i versiones 7.1, 7.2, 7.3 y 7.4 SMTP, permite a un atacante de red enviar correos electr\u00f3nicos a destinatarios de dominio local inexistentes en el servidor SMTP, debido al uso de una configuraci\u00f3n no predeterminada. Un atacante podr\u00eda explotar esta vulnerabilidad para consumir ancho de banda de red y espacio en disco innecesarios, y permitir a atacantes remotos enviar correo electr\u00f3nico no deseado.  IBM X-Force ID: 198056" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 4.2 } ], "cvssMetricV30": [ { "source": "psirt@us.ibm.com", "type": "Secondary", "cvssData": { "version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.2, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 6.4 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 4.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:ibm:i:7.1:*:*:*:*:*:*:*", "matchCriteriaId": "75F0F975-DD09-4851-A536-1B8484715FEE" }, { "vulnerable": true, "criteria": "cpe:2.3:o:ibm:i:7.2:*:*:*:*:*:*:*", "matchCriteriaId": "BD871157-2BB3-4641-B84E-3EA13D24D35A" }, { "vulnerable": true, "criteria": "cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*", "matchCriteriaId": "9A49E8C5-7967-42AE-A787-C533D24A63D7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*", "matchCriteriaId": "92D03306-B6C9-403E-99A2-CE9D8DC3B482" } ] } ] } ], "references": [ { "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/198056", "source": "psirt@us.ibm.com", "tags": [ "VDB Entry", "Vendor Advisory" ] }, { "url": "https://www.ibm.com/support/pages/node/6445505", "source": "psirt@us.ibm.com", "tags": [ "Vendor Advisory" ] } ] }