A high-severity vulnerability has been discovered in multiple Akinsoft QR Menu products. This flaw allows an attacker to make unlimited login attempts without being blocked, which can lead to an authentication bypass through brute-force attacks. Successful exploitation could grant an attacker unauthorized access to the system, potentially leading to data theft, service disruption, and reputational damage.

The vulnerability is an Improper Restriction of Excessive Authentication Attempts. The application's login interface fails to implement protective mechanisms such as rate limiting, account lockouts, or CAPTCHA after a certain number of failed login attempts. An attacker can exploit this by using automated tools to systematically guess usernames and passwords (a brute-force attack) until a valid combination is found, thereby bypassing authentication and gaining unauthorized access to the application.

This vulnerability is rated as High severity with a CVSS score of 8.6. Successful exploitation could have a significant business impact by allowing an unauthorized user to gain administrative access to the QR Menu system. Potential consequences include the modification of menu items and pricing, theft of customer or order data, defacement of the public-facing menu, and disruption of business operations. This could lead to direct financial loss, regulatory fines related to data breaches, and severe damage to the organization's reputation.

Immediate Action: Apply vendor security updates immediately across all affected systems to patch the vulnerability. Prioritize patching for systems that are exposed to the internet. After patching, review access logs for any signs of successful or attempted brute-force attacks that may have occurred prior to remediation.

Proactive Monitoring: Security teams should actively monitor authentication logs for an abnormally high volume of failed login attempts, especially from a single IP address or user account. Configure alerts for suspicious login patterns, such as logins from unusual geographic locations or outside of normal business hours. Monitor for any unauthorized changes to user accounts or system configurations.

Compensating Controls: If immediate patching is not feasible, implement the following compensating controls:

• Place a Web Application Firewall (WAF) in front of the application with rules configured to rate-limit login requests from a single IP address.
• Restrict access to the application's administrative interface to trusted IP addresses or internal networks only.
• Enforce Multi-Factor Authentication (MFA) for all user accounts if the application supports it.

Public Exploit Available: false

Given the high CVSS score of 8.6 and the direct path to authentication bypass, it is strongly recommended that organizations prioritize the immediate application of the vendor-supplied security patches. Although this vulnerability is not currently listed on the CISA KEV list, its severity and the ease of exploitation make it a critical risk. If patching is delayed, the implementation of compensating controls, such as WAF-based rate-limiting and access control restrictions, is essential to mitigate the risk of a compromise.