CVE-2018-12997 : Vulnerability Insights and Analysis

Zoho ManageEngine products before specific build versions suffer from an incorrect access control vulnerability in the FailOverHelperServlet. Attackers can exploit this flaw to gain unauthorized access by sending crafted requests.

Understanding CVE-2018-12997

This CVE involves a vulnerability in Zoho ManageEngine products that allows attackers to read files on the web server without proper authentication.

What is CVE-2018-12997?

The FailOverHelperServlet in Zoho ManageEngine Netflow Analyzer, Network Configuration Manager, OpManager, OpUtils, and Firewall Analyzer is susceptible to an access control issue. Attackers can exploit this to access certain files on the server without the need for login credentials.

The Impact of CVE-2018-12997

This vulnerability enables unauthorized users to read specific files on the web server, potentially exposing sensitive information and compromising the security of the affected systems.

Technical Details of CVE-2018-12997

Zoho ManageEngine products are affected by an access control vulnerability in the FailOverHelperServlet.

Vulnerability Description

The vulnerability allows attackers to read files on the web server by sending a specially crafted request with specific parameters.

Affected Systems and Versions

Zoho ManageEngine Netflow Analyzer before build 123137
Network Configuration Manager before build 123128
OpManager before build 123148
OpUtils before build 123161
Firewall Analyzer before build 123147

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a request with the operation=copyfile&fileName= substring, allowing them to access files on the server without proper authentication.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of CVE-2018-12997.

Immediate Steps to Take

Apply security patches provided by Zoho ManageEngine for the affected products.
Monitor network traffic for any suspicious activity that may indicate exploitation of this vulnerability.

Long-Term Security Practices

Regularly update and patch all software and applications to prevent known vulnerabilities.
Implement strong access control measures to restrict unauthorized access to sensitive files.

Patching and Updates

Ensure that all Zoho ManageEngine products are updated to the latest build versions that contain fixes for this vulnerability.