CVE-2021-42127 : Vulnerability Insights and Analysis

A deserialization of untrusted data vulnerability exists in Ivanti Avalanche before 6.3.3 using Inforail Service allows arbitrary code execution via Data Repository Service.

Understanding CVE-2021-42127

This CVE pertains to a deserialization vulnerability in Ivanti Avalanche version 6.3.3.

What is CVE-2021-42127?

This CVE describes a security flaw in Ivanti Avalanche that could potentially lead to arbitrary code execution due to deserialization of untrusted data.

The Impact of CVE-2021-42127

The vulnerability allows attackers to exploit the deserialization issue to execute malicious code through the Data Repository Service, posing a significant security risk.

Technical Details of CVE-2021-42127

This section provides in-depth technical details regarding the CVE.

Vulnerability Description

The vulnerability stems from the deserialization of untrusted data in Ivanti Avalanche before version 6.3.3, specifically using the Inforail Service.

Affected Systems and Versions

Product: Ivanti Avalanche
Versions Affected: 6.3.3

Exploitation Mechanism

Attackers can leverage the deserialization vulnerability to execute arbitrary code via the Data Repository Service.

Mitigation and Prevention

Protective measures and steps to address the CVE.

Immediate Steps to Take

Upgrade Ivanti Avalanche to version 6.3.3 to mitigate the vulnerability.
Restrict access to the Data Repository Service to authorized personnel only.

Long-Term Security Practices

Conduct regular security assessments and audits to identify and address vulnerabilities.
Implement secure coding practices to prevent deserialization vulnerabilities.

Patching and Updates

Stay informed about security updates for Ivanti Avalanche to apply necessary patches and enhancements.