CVE-2022-39334

Nextcloud also ships a CLI utility called nextcloudcmd which is sometimes used for automated scripting and headless servers. Versions of nextcloudcmd prior to 3.6.1 would incorrectly trust invalid TLS certificates, which may enable a Man-in-the-middle attack that exposes sensitive data or credentials to a network attacker. This affects the CLI only. It does not affect the standard GUI desktop Nextcloud clients, and it does not affect the Nextcloud server.

CVSS v3.0 4.7 MEDIUM

4.7^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://hackerone.com/reports/1699740	Permissions Required Third Party Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-82xx-98xv-4jxv	Third Party Advisory
https://github.com/nextcloud/desktop/pull/5022	Patch Third Party Advisory
https://github.com/nextcloud/desktop/issues/4927	Exploit Issue Tracking Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*

Information

Published : 2022-11-25 11:15

Updated : 2023-03-06 15:15

NVD link : CVE-2022-39334

Mitre link : CVE-2022-39334

JSON object : View

CWE

CWE-295

Improper Certificate Validation

Advertisement

Products Affected

nextcloud

desktop

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://hackerone.com/reports/1699740", "name": "https://hackerone.com/reports/1699740", "tags": ["Permissions Required", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-82xx-98xv-4jxv", "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-82xx-98xv-4jxv", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://github.com/nextcloud/desktop/pull/5022", "name": "https://github.com/nextcloud/desktop/pull/5022", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/nextcloud/desktop/issues/4927", "name": "https://github.com/nextcloud/desktop/issues/4927", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Nextcloud also ships a CLI utility called nextcloudcmd which is sometimes used for automated scripting and headless servers. Versions of nextcloudcmd prior to 3.6.1 would incorrectly trust invalid TLS certificates, which may enable a Man-in-the-middle attack that exposes sensitive data or credentials to a network attacker. This affects the CLI only. It does not affect the standard GUI desktop Nextcloud clients, and it does not affect the Nextcloud server."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-295"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-39334", "ASSIGNER": "security-advisories@github.com"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.0}}, "publishedDate": "2022-11-25T19:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.6.1"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-03-06T23:15Z"}