CVE-2019-19774 : Exploit Details and Defense Strategies

A vulnerability has been identified in Zoho ManageEngine EventLog Analyzer 10.0 SP1 before Build 12110 that allows unauthorized access to sensitive credential information.

Understanding CVE-2019-19774

This CVE involves a security flaw in Zoho ManageEngine EventLog Analyzer 10.0 SP1 that enables the retrieval of MD5 hashes of accounts used for authentication.

What is CVE-2019-19774?

The vulnerability in Zoho ManageEngine EventLog Analyzer 10.0 SP1 allows attackers to bypass security measures and access credential information stored in the database.

The Impact of CVE-2019-19774

The exploit permits the retrieval of MD5 hashes of accounts used for authentication between the ManageEngine platform and managed machines, typically administrative accounts.

Technical Details of CVE-2019-19774

This section provides in-depth technical insights into the vulnerability.

Vulnerability Description

By executing a specific command at the /event/runquery.do endpoint, attackers can circumvent security measures and access sensitive credential information stored in the database.

Affected Systems and Versions

Product: Zoho ManageEngine EventLog Analyzer 10.0 SP1
Versions: Before Build 12110

Exploitation Mechanism

Attackers can exploit this vulnerability by running the command "select hostdetails from hostdetails" at the specified endpoint, allowing them to retrieve MD5 hashes of authentication accounts.

Mitigation and Prevention

Protecting systems from CVE-2019-19774 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Zoho ManageEngine EventLog Analyzer to Build 12110 or later to patch the vulnerability.
Monitor and restrict access to the /event/runquery.do endpoint.

Long-Term Security Practices

Implement least privilege access controls to limit user permissions.
Regularly audit and monitor database queries for suspicious activities.

Patching and Updates

Apply security patches and updates provided by Zoho ManageEngine to address the vulnerability effectively.