CVE-2021-41166

The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions prior to 3.17.1 may lead to sensitive information disclosure. An unauthorized app that does not have the otherwise required `MANAGE_DOCUMENTS` permission may view image thumbnails for images it does not have permission to view. Version 3.17.1 contains a patch. There are no known workarounds.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086	Patch Third Party Advisory
https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c	Patch Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4	Patch Third Party Advisory
https://hackerone.com/reports/1358597	Permissions Required

Configurations

Configuration 1 (hide)

cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:android:*:*

History

No history.

Information

Published : 2022-01-26 23:15

Updated : 2024-02-28 18:48

NVD link : CVE-2021-41166

Mitre link : CVE-2021-41166

CVE.ORG link : CVE-2021-41166

JSON object : View

Products Affected

nextcloud

nextcloud

CWE

CWE-276

Incorrect Default Permissions

{"id": "CVE-2021-41166", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.8}]}, "published": "2022-01-26T23:15:08.217", "references": [{"url": "https://github.com/nextcloud/android/commit/aa47197109970b8449c4e44601eba36e3481b086", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nextcloud/android/commit/b6ecf515b38c2d82d32743f27236534f3e03ee0c", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wrwg-jwpg-r3c4", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://hackerone.com/reports/1358597", "tags": ["Permissions Required"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-276"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-276"}]}], "descriptions": [{"lang": "en", "value": "The Nextcloud Android app is the Android client for Nextcloud, a self-hosted productivity platform. An issue in versions prior to 3.17.1 may lead to sensitive information disclosure. An unauthorized app that does not have the otherwise required `MANAGE_DOCUMENTS` permission may view image thumbnails for images it does not have permission to view. Version 3.17.1 contains a patch. There are no known workarounds."}, {"lang": "es", "value": "La aplicaci\u00f3n Android de Nextcloud es el cliente Android para Nextcloud, una plataforma de productividad auto-alojada. Un problema en las versiones anteriores a 3.17.1 puede conllevar a una divulgaci\u00f3n de informaci\u00f3n confidencial. Una aplicaci\u00f3n no autorizada que no tenga el permiso \"MANAGE_DOCUMENTS\" requerido puede visualizar las miniaturas de las im\u00e1genes que no presenta permiso para visualizar. La versi\u00f3n 3.17.1 contiene un parche. No se presentan medidas de mitigaci\u00f3n conocidas"}], "lastModified": "2022-02-02T19:29:16.787", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:android:*:*", "vulnerable": true, "matchCriteriaId": "946BAD69-A288-4980-8BFC-5AFA1E321B44", "versionEndExcluding": "3.17.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}