CVE-2019-18346 Explained : Impact and Mitigation

A security vulnerability known as CSRF has been found in DAViCal version 1.1.8 and earlier. When an authenticated user visits a website controlled by an attacker, the attacker can make unauthorized requests on behalf of the user within the application. If the targeted user has administrator privileges, the attacker could, for example, create a new administrator account.

Understanding CVE-2019-18346

This CVE refers to a Cross-Site Request Forgery (CSRF) vulnerability in DAViCal CalDAV Server.

What is CVE-2019-18346?

CVE-2019-18346 is a security flaw in DAViCal versions up to 1.1.8 that allows attackers to perform unauthorized actions on behalf of authenticated users.

The Impact of CVE-2019-18346

The vulnerability enables attackers to manipulate the application to execute actions as if they were the authenticated user, potentially leading to unauthorized operations, data breaches, or privilege escalation.

Technical Details of CVE-2019-18346

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The CSRF issue in DAViCal allows attackers to send arbitrary requests on behalf of authenticated users when they visit a malicious website controlled by the attacker.

Affected Systems and Versions

DAViCal version 1.1.8 and earlier are affected by this vulnerability.

Exploitation Mechanism

An attacker tricks an authenticated user into visiting a malicious website.
The attacker then sends unauthorized requests within the application on behalf of the user.
If the targeted user has administrative privileges, severe consequences like creating new admin accounts can occur.

Mitigation and Prevention

Protecting systems from CVE-2019-18346 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update DAViCal to the latest version to patch the CSRF vulnerability.
Educate users about the risks of clicking on unknown links or visiting suspicious websites.

Long-Term Security Practices

Implement strict access controls and least privilege principles to limit the impact of potential attacks.
Regularly monitor and audit user activities to detect any unauthorized actions.

Patching and Updates

Stay informed about security updates and patches released by DAViCal to address vulnerabilities like CSRF.