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CVE-2021-42120— Missing Character Length (Denial of Service) in TopEase

Quick assessment

Affected
Business-DNA Solutions GmbH TopEase
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.

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 存在资源管理错误漏洞，该漏洞源于在 Business-DNA Solutions GmbH 的 TopEase平台版本= 7.1.27 上对所有对象属性运行的 Web 应用程序中的输入验证不足。攻击者可利用该漏洞插入任意长的字符串，最终导致耗

CVSS 6.5 · Medium EPSS 1.10% · P64

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-42120

Vulnerability Information
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Vulnerability Title
Missing Character Length (Denial of Service) in TopEase
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient Input Validation in Web Applications operating on Business-DNA Solutions GmbH’s TopEase® Platform Version <= 7.1.27 on all object attributes allows an authenticated remote attacker with Object Modification privileges to insert arbitrarily long strings, eventually leading to exhaustion of the underlying resource.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Business-Dna Solution GmbH TopEase 资源管理错误漏洞
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 存在资源管理错误漏洞，该漏洞源于在 Business-DNA Solutions GmbH 的 TopEase平台版本= 7.1.27 上对所有对象属性运行的 Web 应用程序中的输入验证不足。攻击者可利用该漏洞插入任意长的字符串，最终导致耗
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 ~ 7.1.27 -

II. Public POCs for CVE-2021-42120

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III. Intelligence Information for CVE-2021-42120

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Other References for CVE-2021-42120 (1)

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-2021-42544 7.5 HIGH Lack of Rate limiting in Authentication 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-2021-42116 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
Same vendor: Business-DNA Solutions GmbH
Same weakness: CWE-20

V. Comments for CVE-2021-42120

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