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I. Basic Information for CVE-2021-29621
Vulnerability Information

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Vulnerability Title
Observable Response Discrepancy in Flask-AppBuilder
Source: NVD (National Vulnerability Database)
Vulnerability Description
Flask-AppBuilder is a development framework, built on top of Flask. User enumeration in database authentication in Flask-AppBuilder <= 3.2.3. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Upgrade to version 3.3.0 or higher to resolve.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过差异性导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Flask-AppBuilder安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Flask-AppBuilder是一个简单快速的应用程序开发框架。 Flask- appbuilder 存在安全漏洞,该漏洞源于Flask-AppBuilder <= 3.2.3缺少身份验证措施或身份验证强度不足。攻击者可利用该漏洞允许未经身份验证的用户在登录时通过计时服务器的响应时间枚举现有帐户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
dpgasparFlask-AppBuilder < 3.3.0 -
II. Public POCs for CVE-2021-29621
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III. Intelligence Information for CVE-2021-29621
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IV. Related Vulnerabilities
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