How to Fix CVE-2025-1107 and CVE-2025-1108: Critical Vulnerabilities in Janto Software Requiring Immediate Patch?

Janto, a ticketing platform developed by Impronta, faces two critical vulnerabilities, CVE-2025-1107 and CVE-2025-1108, demanding immediate attention from security professionals. These flaws could allow unauthenticated attackers to compromise user accounts and manipulate password reset processes. This article delves into the specifics of these vulnerabilities, their potential impact, and provides a detailed guide for remediation and mitigation. This article aims to equip security professionals with the necessary knowledge to protect their Janto installations from potential exploitation. We will cover the vulnerability summaries, affected products, methods for identifying vulnerable systems, and step-by-step instructions for patching and implementing workarounds to minimize the risk.

A Short Introduction to Janto Software

Janto is a ticketing platform developed by Impronta designed for managing events, sales, and access control. It offers features for ticket creation, distribution, sales tracking, and customer management. Janto is often used by organizations involved in event management, entertainment, and venues requiring robust ticketing solutions. Due to its role in managing sensitive information and access, security vulnerabilities within Janto can have significant consequences.

Summary of the Vulnerabilities

Here's a summary of the two critical vulnerabilities identified in Janto software:

CVE-2025-1107 arises from the lack of proper verification during the password change process. An unauthenticated attacker can exploit this flaw to change another user's password without knowing the current password. This is achieved by sending a crafted POST request to the /public/cgi/Gateway.php endpoint. More information about CVE-2025-1107 can be found at https://nvd.nist.gov/vuln/detail/CVE-2025-1107.

CVE-2025-1108 stems from insufficient verification of data authenticity. An unauthenticated attacker can modify the content of password reset emails by injecting malicious content into the Xml parameter via a POST request to the /public/cgi/Gateway.php endpoint. This could be used to phish users or redirect them to malicious websites. More information about CVE-2025-1108 can be found at https://nvd.nist.gov/vuln/detail/CVE-2025-1108. Both vulnerabilities exploit the same endpoint, suggesting a broader issue with input validation and authentication within the Janto application. The high CVSS scores reflect the potential for significant impact, especially given the ease of exploitation and the lack of required privileges.

Impact of the Vulnerabilities

The impact of these vulnerabilities is significant, particularly for organizations relying on Janto for ticketing and access management.

CVE-2025-1107 allows attackers to take over user accounts by changing passwords without proper authorization. This can lead to unauthorized access to sensitive information, disruption of services, and potential financial losses if compromised accounts are used to manipulate ticket sales or access controls.

CVE-2025-1108 enables attackers to manipulate password reset emails, leading to phishing attacks and further compromise of user credentials. This can damage an organization's reputation and erode user trust.

Both vulnerabilities can be exploited remotely without requiring user interaction or privileges, making them highly dangerous. The high CVSS scores of 9.9 and 8.6 underscore the severity of these flaws and the need for immediate action. The ability to compromise accounts and manipulate communications can have far-reaching consequences, affecting both the organization and its users. A well-defined cyber incident response plan is crucial in such scenarios.

Products Affected by the Vulnerabilities

The vulnerabilities affect the following product:

All Janto installations prior to version r12 are vulnerable to both CVE-2025-1107 and CVE-2025-1108. Customers using Janto in SaaS mode have been automatically upgraded to version r12, which fixes these issues. Organizations running on-premise installations of Janto must verify their version and upgrade accordingly. Organizations should implement robust patch management strategies.

How to Check If Your Product is Vulnerable?

To determine if your Janto installation is vulnerable, follow these steps:

1. Check the Janto Version: Log in to the Janto administrative interface. Look for the version number in the footer, "About" section, or system information panel. If the version is prior to r12, your system is vulnerable.

2. Inspect Network Traffic: Use a network traffic analyzer (e.g., Wireshark) to monitor HTTP POST requests to the /public/cgi/Gateway.php endpoint. Look for requests with unusual parameters or suspicious data in the Xml parameter.

3. Review Web Server Logs: Examine your web server's access logs for POST requests to /public/cgi/Gateway.php. Look for patterns indicating attempts to manipulate password change requests or inject malicious content into the Xml parameter.

4. Simulate Exploitation Attempts (Penetration Testing): Conduct penetration testing to simulate the exploitation of CVE-2025-1107 and CVE-2025-1108. This involves crafting malicious POST requests and sending them to the /public/cgi/Gateway.php endpoint to see if you can change a user's password or modify password reset emails.

How to Fix the Vulnerabilities?

The primary remediation strategy is to upgrade your Janto installation to version r12 or later. Impronta has released a patch that addresses both CVE-2025-1107 and CVE-2025-1108.

1. Upgrade Janto:

2. Workarounds (If Immediate Patching Is Not Possible):

By implementing these fixes, mitigations, and best practices, you can significantly reduce the risk posed by CVE-2025-1107 and CVE-2025-1108 and improve the overall security posture of your Janto installation. A solid grasp of what you should know about CVSS is crucial for security professionals.

In the event that a patch is not immediately available or upgrading is not feasible, security professionals should prioritize implementing the suggested workarounds and closely monitor official channels for any security updates or patches related to these vulnerabilities. Continuous vigilance and proactive security measures are essential to protect Janto installations from potential exploitation. Stay informed with resources like INCIBE-CERT.

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