CVE-2021-42128 : Security Advisory and Response
Learn about CVE-2021-42128, a vulnerability in Ivanti Avalanche before 6.3.3 allowing Privilege Escalation via Enterprise Server Service. Find mitigation steps here.
A vulnerability exists in Ivanti Avalanche before version 6.3.3 that allows Privilege Escalation via Enterprise Server Service.
Understanding CVE-2021-42128
An exposed dangerous function vulnerability affects Ivanti Avalanche before 6.3.3, posing a risk of Privilege Escalation via Enterprise Server Service.
What is CVE-2021-42128?
The vulnerability in Ivanti Avalanche before 6.3.3 allows attackers to elevate privileges through the Enterprise Server Service.
The Impact of CVE-2021-42128
Exploitation of this vulnerability could result in unauthorized users gaining elevated privileges on the affected system.
Technical Details of CVE-2021-42128
The technical details of the CVE-2021-42128 vulnerability are as follows:
Vulnerability Description
The vulnerability is due to an exposed dangerous function in Ivanti Avalanche before 6.3.3, potentially leading to Privilege Escalation through the Enterprise Server Service.
Affected Systems and Versions
- Product: Ivanti Avalanche
- Version: 6.3.3
Exploitation Mechanism
Attackers can exploit this vulnerability by leveraging the inforail Service to escalate privileges via the Enterprise Server Service.
Mitigation and Prevention
To address CVE-2021-42128, consider the following steps:
Immediate Steps to Take
- Update Ivanti Avalanche to version 6.3.3 to mitigate the vulnerability.
- Monitor privileged user activity closely.
Long-Term Security Practices
- Conduct regular security audits and vulnerability scans.
- Implement the principle of least privilege to restrict user access.
- Educate users on security best practices.
Patching and Updates
Ensure timely patching and updates for Ivanti Avalanche to prevent exploitation of known vulnerabilities.