Vulnerability Information
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Vulnerability Title
Nextcloud Twofactor WebAuthn app was updated based on public key
Vulnerability Description
Nextcloud Twofactor WebAuthn is the WebAuthn Two-Factor Provider for Nextcloud. Prior to 1.4.2 and 2.4.1, a missing ownership check allowed an attack to take-away a 2FA webauthn device when correctly guessing a 80-128 character long random string of letters, numbers and symbols. The victim would then be prompted to register a new device on the next login. The attacker can not authenticate as the victim. This vulnerability is fixed in 1.4.2 and 2.4.1.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Vulnerability Type
通过用户控制密钥绕过授权机制
Vulnerability Title
WebAuthn second factor provider for Nextcloud 安全漏洞
Vulnerability Description
WebAuthn second factor provider for Nextcloud是Nextcloud开源的一个双因素认证软件。 WebAuthn second factor provider for Nextcloud 1.4.2之前版本和2.4.1之前版本存在安全漏洞，该漏洞源于缺少所有权检查，可能导致攻击者移除2FA设备。
CVSS Information
N/A
Vulnerability Type
N/A