CVE-2021-42544— Lack of Rate limiting in Authentication in TopEase
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I. Basic Information for CVE-2021-42544
Vulnerability Information
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Vulnerability Title
Lack of Rate limiting in Authentication in TopEase
Source: NVD (National Vulnerability Database)
Vulnerability Description
Missing Rate Limiting in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 on the Login Form allows an unauthenticated remote attacker to perform multiple login attempts, which facilitates gaining privileges.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
过多认证尝试的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Business-Dna Solution GmbH TopEase 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Business-Dna Solution GmbH TopEase是瑞士Business-Dna Solution GmbH公司的一种“转型风险”解决方案。用于全面、简单、快速和安全地管理复杂的项目和措施。 BAB TECHNOLOGIE GmbH eibPort 存在安全漏洞，该漏洞源于在登录表单上Business-DNA Solutions GmbH 的 TopEase 平台版本<= 7.1.27上运行的Web应用程序的漏报率限制允许未经身份验证的远程攻击者执行多次登录尝试，这有助于获得特权。
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 |
|---|---|---|---|---|
| Business-DNA Solutions GmbH | TopEase | unspecified ~ 7.1.28 | - |
II. Public POCs for CVE-2021-42544
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://confluence.topease.ch/confluence/display/DOC/Release+Notesx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-42544
Same Patch Batch · Business-DNA Solutions GmbH · 2021-11-30 · 11 CVEs total
| CVE-2021-42115 | 8.1 HIGH | Missing HTTPOnly flag on sensitive cookie in TopEase |
| CVE-2021-42118 | 8.1 HIGH | Stored XSS in TopEase |
| CVE-2021-42545 | 8.1 HIGH | Insufficient Session Expiration in TopEase |
| CVE-2021-42119 | 7.3 HIGH | Stored XSS in Search Function in TopEase |
| CVE-2021-42123 | 7.3 HIGH | Missing Upload Filter in TopEase |
| CVE-2021-42120 | 6.5 MEDIUM | Missing Character Length (Denial of Service) in TopEase |
| CVE-2021-42116 | 4.3 MEDIUM | Unauthorized Menu Item Access in TopEase |
| CVE-2021-42121 | 4.3 MEDIUM | Denial of Service via Invalid Date Format in TopEase |
| CVE-2021-42122 | 4.3 MEDIUM | Denial of Service via Invalid Object Attribute in TopEase |
| CVE-2021-42117 | 3.5 LOW | UI Redressing in TopEase |
IV. Related Vulnerabilities
Same product: TopEase
- CVE-2021-42545
Insufficient Session Expiration in TopEase - CVE-2021-42123
Missing Upload Filter in TopEase - CVE-2021-42122
Denial of Service via Invalid Object Attribute in TopEase - CVE-2021-42121
Denial of Service via Invalid Date Format in TopEase - CVE-2021-42120
Missing Character Length (Denial of Service) in TopEase
Same vendor: Business-DNA Solutions GmbH
- CVE-2021-42545
Insufficient Session Expiration in TopEase - CVE-2021-42123
Missing Upload Filter in TopEase - CVE-2021-42122
Denial of Service via Invalid Object Attribute in TopEase - CVE-2021-42121
Denial of Service via Invalid Date Format in TopEase - CVE-2021-42120
Missing Character Length (Denial of Service) in TopEase
Same weakness: CWE-307
- CVE-2026-41893
Signal K Server's WebSocket Login Endpoint Lacks Rate Limiti - CVE-2025-2514
Improper Restriction of Excessive Authentication Attempts vu - CVE-2023-54347
OpenEMR 7.0.1 Authentication Brute Force Mitigation Bypass - CVE-2026-7671
CodeWise Tornet Scooter Mobile App TwoFactor excessive authe - CVE-2026-26206
Wazuh: API brute-force protection bypass via race condition
V. Comments for CVE-2021-42544
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