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CVE-2021-41265— Improper Authentication in Flask-AppBuilder

Quick assessment

Affected
dpgaspar Flask-AppBuilder
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flask-AppBuilder是一个简单快速的应用程序开发框架。 Flask-AppBuilder 3.3.4 之前的版本存在授权问题漏洞，该漏洞允许恶意行为者通过精心设计的请求成功进行身份验证并获得对现有受保护 REST API 端点的访问权限。

CVSS 8.1 · High EPSS 1.32% · P70

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-41265

Vulnerability Information
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Vulnerability Title
Improper Authentication in Flask-AppBuilder
Source: CVE Program / CVE List V5
Vulnerability Description
Flask-AppBuilder is a development framework built on top of Flask. Verions prior to 3.3.4 contain an improper authentication vulnerability in the REST API. The issue allows for a malicious actor with a carefully crafted request to successfully authenticate and gain access to existing protected REST API endpoints. This only affects non database authentication types and new REST API endpoints. Users should upgrade to Flask-AppBuilder 3.3.4 to receive a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Flask-AppBuilder 授权问题漏洞
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 3.3.4 之前的版本存在授权问题漏洞，该漏洞允许恶意行为者通过精心设计的请求成功进行身份验证并获得对现有受保护 REST API 端点的访问权限。
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

Vendor Product Affected Versions CPE Subscribe
dpgaspar Flask-AppBuilder < 3.3.4 -

II. Public POCs for CVE-2021-41265

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III. Intelligence Information for CVE-2021-41265

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Patches & Fixes for CVE-2021-41265 (1)

Vendor Advisories for CVE-2021-41265 (1)

Other References for CVE-2021-41265 (1)

IV. Related Vulnerabilities

Same product: Flask-AppBuilder
Same vendor: dpgaspar
Same weakness: CWE-287

V. Comments for CVE-2021-41265

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