{"id": "CVE-2021-35030", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.3, "accessVector": "ADJACENT_NETWORK", "vectorString": "AV:A/AC:M/Au:S/C:N/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 4.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 1.2}, {"type": "Secondary", "source": "security@zyxel.com.tw", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 2.5, "exploitabilityScore": 0.9}]}, "published": "2021-07-26T12:15:08.817", "references": [{"url": "https://www.zyxel.com/support/Zyxel_security_advisory_for_XSS_vulnerability_of_GS1900_series_switches.shtml", "tags": ["Patch", "Vendor Advisory"], "source": "security@zyxel.com.tw"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-79"}]}, {"type": "Secondary", "source": "security@zyxel.com.tw", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability was found in the CGI program in Zyxel GS1900-8 firmware version V2.60, that did not properly sterilize packet contents and could allow an authenticated, local user to perform a cross-site scripting (XSS) attack via a crafted LLDP packet."}, {"lang": "es", "value": "Se ha encontrado una vulnerabilidad en el programa CGI de Zyxel GS1900-8 versi\u00f3n del firmware V2.60, que no esterilizaba apropiadamente el contenido de los paquetes y pod\u00eda permitir a un usuario local autenticado llevar a cabo un ataque de tipo cross-site scripting (XSS) por medio de un paquete LLDP dise\u00f1ado"}], "lastModified": "2021-08-13T12:53:43.413", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-8_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD447145-9B13-4B3E-B35E-65AB4A576B8D", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-8:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "51D33F50-B5A4-4AEF-972C-7FF089C21D52"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-8hp_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "06D9347D-F0F3-4E9B-8EF6-AA2A723A55E6", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-8hp:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "27602862-EFB7-402B-994E-254A0B210820"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-10hp_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A54B9C24-6492-463F-8768-BF1E092D9077", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-10hp:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "89201505-07AF-4F9C-9304-46F2707DB9B4"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-16_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9D2B2385-9DDF-4E5E-9CFE-12B0304568BF", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-16:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5078F7A5-D03B-4D3A-9C19-57DFF4D6BF7A"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-24e_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "674594F8-B90F-4D8E-82E4-9DE721BC52E5", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-24e:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A6456AD6-8A1D-4D3D-AC1A-ABE442242B1B"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-24ep_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F69D2726-44BB-4AFB-9447-2220675020AE", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-24ep:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B22AA8B1-11E2-408F-A1F6-0F8AF32AB131"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-24_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC29ADFF-27E6-4CFA-8C5F-32542AC36052", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-24:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "F4F55299-70D5-4CE1-A1EC-D79B469B94F7"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-24hp_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4567A0DB-6E8E-4714-B573-8FEA4A571738", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-24hp:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "74B1D264-99AC-4AA8-955C-602F2DA5B885"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-24hpv2_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "99DCDB75-4D17-4A05-AF5A-4ADA54A54142", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-24hpv2:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "512D9A91-8DA7-47F1-AC77-AF743F99BFF3"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-48_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BD68BF23-59DC-4449-9B53-ACBCC6F4A871", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-48:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "CFB7D4BF-7D17-48D3-990D-4BADAC8BD868"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-48hp_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A4D35C7-255C-4842-8D75-22CAC3E14C6C", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-48hp:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "566A9E8C-AF55-4331-B9B0-F65EB900B0BE"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:zyxel:gs1900-48hpv2_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "39C45C13-DD78-4486-833A-773A5F0A77A8", "versionEndExcluding": "2.70"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:zyxel:gs1900-48hpv2:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BC74C679-6D22-47E4-AE8A-2647B1AA4276"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "security@zyxel.com.tw"}