{"containers": {"cna": {"title": "Microsoft Exchange Information Disclosure Vulnerability", "datePublic": "2020-10-13T07:00:00+00:00", "affected": [{"vendor": "Microsoft", "product": "Microsoft Exchange Server 2019 Cumulative Update 6", "cpes": ["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "15.02.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft Exchange Server 2016 Cumulative Update 17", "cpes": ["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "15.01.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft Exchange Server 2019 Cumulative Update 7", "cpes": ["cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "15.02.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft Exchange Server 2016 Cumulative Update 18", "cpes": ["cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "15.01.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft Exchange Server 2013 Cumulative Update 23", "cpes": ["cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*"], "platforms": ["x64-based Systems"], "versions": [{"version": "15.00.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "<p>An information disclosure vulnerability exists in how Microsoft Exchange validates tokens when handling certain messages. An attacker who successfully exploited the vulnerability could use this to gain further information from a user.</p>\n<p>To exploit the vulnerability, an attacker could include specially crafted OWA messages that could be loaded, without warning or filtering, from the attacker-controlled URL. This callback vector provides an information disclosure tactic used in web beacons and other types of tracking systems.</p>\n<p>The security update corrects the way that Exchange handles these token validations.</p>\n", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "Information Disclosure", "lang": "en-US", "type": "Impact"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2023-12-31T19:19:59.620Z"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16969"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C"}}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:45:34.738Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16969"}]}]}, "cveMetadata": {"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "assignerShortName": "microsoft", "cveId": "CVE-2020-16969", "datePublished": "2020-10-16T22:18:07", "dateReserved": "2020-08-04T00:00:00", "dateUpdated": "2024-08-04T13:45:34.738Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*", "matchCriteriaId": "DA166F2A-D83B-4D50-AD0B-668D813E0585", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*", "matchCriteriaId": "079E1E3F-FF25-4B0D-AC98-191D6455A014", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*", "matchCriteriaId": "29805EC7-6403-44B9-91EC-109C087E98EB", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*", "matchCriteriaId": "D4AB3C25-CEA8-4D66-AEE4-953C8B17911A", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*", "matchCriteriaId": "36CE5C6D-9A04-41F5-AE7C-265779833649", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "<p>An information disclosure vulnerability exists in how Microsoft Exchange validates tokens when handling certain messages. An attacker who successfully exploited the vulnerability could use this to gain further information from a user.</p>\n<p>To exploit the vulnerability, an attacker could include specially crafted OWA messages that could be loaded, without warning or filtering, from the attacker-controlled URL. This callback vector provides an information disclosure tactic used in web beacons and other types of tracking systems.</p>\n<p>The security update corrects the way that Exchange handles these token validations.</p>\n"}, {"lang": "es", "value": "Se presenta una vulnerabilidad de divulgaci\u00f3n de informaci\u00f3n en como Microsoft Exchange comprueba los tokens cuando maneja determinados mensajes, tambi\u00e9n se conoce como \"Microsoft Exchange Information Disclosure Vulnerability\""}], "id": "CVE-2020-16969", "lastModified": "2023-12-31T20:15:59.407", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.7, "source": "secure@microsoft.com", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Secondary"}]}, "published": "2020-10-16T23:15:16.743", "references": [{"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16969"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}