CVE-2020-8236

A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification by asking for the PIN of the passwordless WebAuthn but not verifying it.

CVSS v3.0 6.8 MEDIUM
CVSS v2.0 4.6 MEDIUM

6.8^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://hackerone.com/reports/924393	Exploit Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-037	Broken Link Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*

Information

Published : 2020-11-02 13:15

Updated : 2022-09-27 08:47

NVD link : CVE-2020-8236

Mitre link : CVE-2020-8236

JSON object : View

CWE

CWE-287

Improper Authentication

Products Affected

nextcloud

nextcloud_server

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6.8 /10