CVE-2022-28815 is a SQL Injection vulnerability identified in Carlo Gavazzi's UWP 3.0 Monitoring Gateway and Controller, specifically affecting version 8 of the product and the CPY Car Park Server version 2.8.3. The vulnerability resides in the Sentilo Proxy server component, which is part of the Sentilo service used by these products. An attacker exploiting this vulnerability can inject malicious SQL queries, enabling them to query other tables within the Sentilo service database. This type of injection falls under CWE-89, which is a common and well-understood class of vulnerabilities where untrusted input is improperly sanitized before being included in SQL statements. The CVSS v3.1 base score is 2.7, indicating a low severity level. The vector indicates the attack can be performed remotely over the network (AV:N), requires low attack complexity (AC:L), but requires high privileges (PR:H) and no user interaction (UI:N). The impact is limited to confidentiality (C:L), with no impact on integrity (I:N) or availability (A:N). No known exploits are currently reported in the wild, and no patches have been linked in the provided information. The vulnerability allows an attacker with high privileges to extract additional data from the database, which could lead to unauthorized information disclosure. However, since it requires high privileges, the attack surface is limited to users or systems that already have elevated access to the Sentilo Proxy server. The Sentilo platform is often used in IoT and monitoring contexts, including smart building and industrial environments, which means the vulnerability could expose sensitive operational data if exploited.

For European organizations using Carlo Gavazzi's UWP 3.0 Monitoring Gateway and Controller or CPY Car Park Server, this vulnerability could lead to unauthorized disclosure of sensitive monitoring or operational data stored within the Sentilo service database. Although the CVSS score is low and exploitation requires high privileges, the impact on confidentiality could be significant if the attacker is an insider or if an attacker gains elevated access through other means. This could affect sectors relying on building automation, industrial monitoring, or smart infrastructure management, potentially exposing operational metrics, sensor data, or configuration details. The lack of impact on integrity and availability means the systems' operation and data correctness remain intact, but data leakage could facilitate further targeted attacks or espionage. Given the critical nature of infrastructure monitoring in Europe, any data leakage could have regulatory and compliance implications, especially under GDPR, if personal or sensitive data is involved. The absence of known exploits reduces immediate risk, but organizations should not underestimate the potential for future exploitation, especially as attackers often chain vulnerabilities.

1. Restrict access to the Sentilo Proxy server and related components strictly to trusted administrators and systems to minimize the risk of privilege escalation leading to exploitation. 2. Implement network segmentation and firewall rules to limit exposure of the Sentilo Proxy server to only necessary internal networks. 3. Conduct thorough input validation and parameterized queries within the Sentilo Proxy server codebase to eliminate SQL injection vectors; if source code modification is not possible, apply compensating controls such as Web Application Firewalls (WAF) with SQL injection detection rules tailored to the Sentilo service. 4. Monitor logs and database query patterns for unusual or unauthorized queries that could indicate attempted exploitation. 5. Engage with Carlo Gavazzi for official patches or updates addressing this vulnerability and apply them promptly once available. 6. Perform regular security audits and penetration tests focusing on the Sentilo Proxy server and associated components to detect any residual injection flaws or privilege escalation paths. 7. Educate privileged users on the importance of credential security to prevent unauthorized access that could lead to exploitation.