External risk intelligence

Serenissima Informatica Fast Checkin Unauthenticated SQL Injection

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2022-47770

Fast Checkin is a hotel check-in software application. Such systems are typically deployed as web-based interfaces designed to be accessible to guests or staff over a network, and in many deployments, these interfaces are exposed to the internet or external-facing networks to facilitate remote check-in processes.

SQL Injection

Serinf Fast Checkin

1.0

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory details a critical vulnerability in Serenissima Informatica Fast Checkin software, specifically version 1.0. The flaw, an unauthenticated SQL injection, could allow unauthorized individuals to potentially access, modify, or delete sensitive data stored within the system without needing any login credentials. The primary concern is to determine if this specific software is in use and, if so, to understand its potential exposure.

Unauthenticated SQL injection flaw in check-in software.
High impact if exploited; data integrity and confidentiality risk.
Confirm usage and exposure to assess business risk.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending specially crafted requests over the network to the Fast Checkin application. Since no authentication is required, an unauthenticated attacker can target the application's input fields, potentially leading to unauthorized access to sensitive data, modification of existing data, or complete loss of availability for the application.

No authentication required.
SQL injection in input fields.
Complete system compromise.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to execute arbitrary SQL commands. This could impact system integrity and lead to unauthorized access or modification of data.

System and user data could be affected.
Exploitation can occur over the network.
Compromise of data integrity and confidentiality.

Operational Fix

Recommended remediation, mitigation, and detection steps

Serenissima Informatica Fast Checkin, a hotel check-in application, is susceptible to unauthenticated SQL injection. Identifying where this technology is deployed, confirming its network exposure and business criticality, and locating the accountable owner are the crucial first steps before planning remediation based on risk.

Application owners should lead the response.
Verify external network exposure.
Plan remediation based on business risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Free EASM Trial See How Signal Works

Frequently asked questions

What is Serenissima Informatica Fast Checkin?

Fast Checkin is a specialized software application developed by Serenissima Informatica to automate and manage the hotel guest registration process. It acts as a digital interface where guests or staff input information to facilitate arrivals. This type of software typically manages sensitive guest records and backend database operations essential for hospitality services.

What does CVE-2022-47770 mean by SQL injection?

This vulnerability is classified as CWE-89, or Improper Neutralization of Special Elements used in an SQL Command. In plain terms, the software fails to properly filter user-provided input before using it in a database query. This allows an attacker to manipulate the underlying SQL commands, potentially granting them unauthorized access to read, change, or erase the information stored within the system's database.

How can an attacker trigger this vulnerability?

An attacker triggers this flaw by sending specifically crafted network requests to the Fast Checkin application. Because the vulnerability is unauthenticated, the attacker does not need to log in or hold any valid user credentials to interact with the target input fields. Simply accessing the application over the network is sufficient; however, normal, legitimate check-in requests performed by guests do not trigger this vulnerability.

Why is this CVE concerning for my organization?

This vulnerability is critical because it involves an external-facing interface. Halo Surface Signal identifies that Fast Checkin systems are often deployed to be reachable over the internet or broad external networks to enable remote check-in features. This deployment pattern increases the risk, as it potentially allows anyone on the internet to attempt to interact with the database without needing to bypass an authentication layer.

What steps should I take if I use Fast Checkin?

If you are running version 1.0, begin by conducting an internal inventory to locate every instance of the software across your infrastructure. Once identified, confirm if these systems are reachable from external networks. Engage your application owners to evaluate the business sensitivity of the data managed by these tools and prioritize them for a comprehensive security review and remediation planning.

References

serenissima.com/

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.