cve-2021-39855
Vulnerability from cvelistv5
Published
2021-09-29 15:39
Modified
2024-09-16 23:00
Severity ?
EPSS score ?
Summary
Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via src Parameter
References
▼ | URL | Tags | |
---|---|---|---|
psirt@adobe.com | https://helpx.adobe.com/security/products/acrobat/apsb21-55.html | Release Notes, Vendor Advisory |
Impacted products
▼ | Vendor | Product |
---|---|---|
Adobe | Acrobat Reader |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T02:20:33.583Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "Acrobat Reader", "vendor": "Adobe", "versions": [ { "lessThanOrEqual": "2020.004.30006", "status": "affected", "version": "unspecified", "versionType": "custom" }, { "lessThanOrEqual": "2017.011.30199", "status": "affected", "version": "unspecified", "versionType": "custom" }, { "lessThanOrEqual": "2021.005.20060", "status": "affected", "version": "unspecified", "versionType": "custom" }, { "lessThanOrEqual": "None", "status": "affected", "version": "unspecified", "versionType": "custom" } ] } ], "datePublic": "2021-09-14T00:00:00", "descriptions": [ { "lang": "en", "value": "Acrobat Reader DC ActiveX Control versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to obtain NTLMv2 credentials. Exploitation of this issue requires user interaction in that a victim must open a maliciously crafted Microsoft Office file, or visit an attacker controlled web page." } ], "metrics": [ { "cvssV3_1": { "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" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-200", "description": "Information Exposure (CWE-200)", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-09-29T15:39:15", "orgId": "078d4453-3bcd-4900-85e6-15281da43538", "shortName": "adobe" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html" } ], "source": { "discovery": "EXTERNAL" }, "title": "Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via src Parameter", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "psirt@adobe.com", "DATE_PUBLIC": "2021-09-14T23:00:00.000Z", "ID": "CVE-2021-39855", "STATE": "PUBLIC", "TITLE": "Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via src Parameter" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Acrobat Reader", "version": { "version_data": [ { "version_affected": "\u003c=", "version_value": "2020.004.30006" }, { "version_affected": "\u003c=", "version_value": "2017.011.30199" }, { "version_affected": "\u003c=", "version_value": "2021.005.20060" }, { "version_affected": "\u003c=", "version_value": "None" } ] } } ] }, "vendor_name": "Adobe" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "Acrobat Reader DC ActiveX Control versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to obtain NTLMv2 credentials. Exploitation of this issue requires user interaction in that a victim must open a maliciously crafted Microsoft Office file, or visit an attacker controlled web page." } ] }, "impact": { "cvss": { "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" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Information Exposure (CWE-200)" } ] } ] }, "references": { "reference_data": [ { "name": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html", "refsource": "MISC", "url": "https://helpx.adobe.com/security/products/acrobat/apsb21-55.html" } ] }, "source": { "discovery": "EXTERNAL" } } } }, "cveMetadata": { "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538", "assignerShortName": "adobe", "cveId": "CVE-2021-39855", "datePublished": "2021-09-29T15:39:15.710516Z", "dateReserved": "2021-08-23T00:00:00", "dateUpdated": "2024-09-16T23:00:28.957Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-39855\",\"sourceIdentifier\":\"psirt@adobe.com\",\"published\":\"2021-09-29T16:15:10.423\",\"lastModified\":\"2022-02-05T02:17:40.027\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Acrobat Reader DC ActiveX Control versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to obtain NTLMv2 credentials. Exploitation of this issue requires user interaction in that a victim must open a maliciously crafted Microsoft Office file, or visit an attacker controlled web page.\"},{\"lang\":\"es\",\"value\":\"Acrobat Reader DC versiones ActiveX Control 2021.005.20060 (y anteriores), versiones 2020.004.30006 (y anteriores), y versiones 2017.011.30199 (y anteriores), est\u00e1n afectadas por una vulnerabilidad de divulgaci\u00f3n de informaci\u00f3n. Un atacante no autenticado podr\u00eda aprovechar esta vulnerabilidad para obtener las credenciales de NTLMv2. Es requerida una interacci\u00f3n del usuario para explotar este problema, ya que la v\u00edctima debe abrir un archivo de Microsoft Office dise\u00f1ado de forma maliciosa o visitar una p\u00e1gina web controlada por el atacante\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6},{\"source\":\"psirt@adobe.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:N/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":4.3},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"psirt@adobe.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*\",\"versionStartIncluding\":\"17.011.30059\",\"versionEndIncluding\":\"17.011.30199\",\"matchCriteriaId\":\"81382F25-AF78-476F-B5D5-824A23354FA2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*\",\"versionStartIncluding\":\"17.011.30059\",\"versionEndIncluding\":\"17.011.30199\",\"matchCriteriaId\":\"8DC875CE-98F6-46A9-A5DE-4E1A24CA1DED\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"387021A0-AF36-463C-A605-32EA7DAC172E\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A2572D17-1DE6-457B-99CC-64AFD54487EA\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*\",\"versionStartIncluding\":\"20.001.30005\",\"versionEndIncluding\":\"20.004.30006\",\"matchCriteriaId\":\"7CD4CE56-464A-4679-91C3-527DA78BCFAE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*\",\"versionStartIncluding\":\"20.001.30005\",\"versionEndIncluding\":\"20.004.30006\",\"matchCriteriaId\":\"39B2389A-9FDD-45DC-8CAD-637B8CA265D9\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"387021A0-AF36-463C-A605-32EA7DAC172E\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A2572D17-1DE6-457B-99CC-64AFD54487EA\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*\",\"versionStartIncluding\":\"15.008.20082\",\"versionEndIncluding\":\"21.005.20058\",\"matchCriteriaId\":\"B2FC4D9A-C9B4-45DD-9D8D-9FBD8C6DAA83\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*\",\"versionStartIncluding\":\"15.008.20082\",\"versionEndIncluding\":\"21.005.20058\",\"matchCriteriaId\":\"9B149932-7CC5-4CE0-B6A6-D34E140705B0\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"387021A0-AF36-463C-A605-32EA7DAC172E\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*\",\"versionStartIncluding\":\"15.008.20082\",\"versionEndIncluding\":\"21.005.20060\",\"matchCriteriaId\":\"D19D3819-2ED8-48A7-A8A1-0A1AF6A7F1E5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*\",\"versionStartIncluding\":\"15.008.20082\",\"versionEndIncluding\":\"21.005.20060\",\"matchCriteriaId\":\"C69371A7-DB10-4407-8FD3-7DF99587F0F6\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:o:microsoft:windows:-:*:*:*:*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Notes\",\"Vendor Advisory\"]}]}}" } }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.