CVE-2021-42120 : What You Need to Know

TopEase platform by Business-DNA Solutions GmbH is affected by an Insufficient Input Validation vulnerability, potentially leading to Denial of Service due to resource exhaustion.

Understanding CVE-2021-42120

This CVE involves an attacker with Object Modification privileges inserting excessively long strings in Web Applications on TopEase <= 7.1.27, causing denial of service.

What is CVE-2021-42120?

Insufficient Input Validation vulnerability in TopEase platform
Allows authenticated remote attackers to exploit object attributes
Leads to exhaustion of underlying resources due to inserting long strings

The Impact of CVE-2021-42120

CVSS Score: 6.5 (Medium Severity)
Attack Vector: NETWORK
Availability Impact: HIGH
Attack Complexity: LOW
No impact on Confidentiality and Integrity

Technical Details of CVE-2021-42120

This section provides insights into the vulnerability, affected systems, and exploitation mechanisms.

Vulnerability Description

Lack of input validation on TopEase <= 7.1.27
Allows attackers to insert excessively long strings
Results in resource exhaustion

Affected Systems and Versions

Affected Product: TopEase
Vendor: Business-DNA Solutions GmbH
Vulnerable Versions: <= 7.1.27 (custom version)

Exploitation Mechanism

Attacker needs Object Modification privileges
Insert long strings via Web Applications
Leading to exhaustion of the underlying resource

Mitigation and Prevention

Protect your systems by following these immediate and long-term security practices.

Immediate Steps to Take

Update TopEase platform to a patched version
Monitor and restrict input lengths in web applications

Long-Term Security Practices

Regular security assessments and audits
Enforce strong access control policies

Patching and Updates

Apply security patches released by Business-DNA Solutions GmbH
Stay informed about new vulnerability disclosures and updates