CVE-2022-45205 is a SQL injection vulnerability identified in Jeecg-boot version 3.4.3, specifically within the component handling the endpoint /sys/dict/queryTableData. SQL injection (CWE-89) vulnerabilities occur when untrusted input is improperly sanitized and directly incorporated into SQL queries, allowing an attacker to manipulate the query logic. In this case, the vulnerability allows an unauthenticated remote attacker to inject malicious SQL statements via the affected endpoint, potentially leading to unauthorized access to database information. The CVSS 3.1 base score is 5.3 (medium severity), with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), and limited confidentiality impact (C:L), with no impact on integrity or availability (I:N/A:N). This suggests that while the vulnerability can be exploited remotely without authentication or user interaction, the impact is limited to partial disclosure of data rather than full compromise or disruption. No known exploits in the wild have been reported, and no official patches or vendor information are currently available. The vulnerability was published on November 25, 2022, and is tracked under CWE-89, a common and well-understood injection flaw. The lack of vendor or product details beyond Jeecg-boot v3.4.3 limits the scope of affected systems, but Jeecg-boot is an open-source rapid development platform primarily used in enterprise Java applications for business process automation and management systems.

For European organizations utilizing Jeecg-boot v3.4.3 in their enterprise applications, this vulnerability poses a risk of unauthorized data exposure through SQL injection attacks. Although the confidentiality impact is rated low, attackers could extract sensitive dictionary or configuration data from backend databases, potentially aiding further reconnaissance or targeted attacks. The lack of impact on integrity and availability reduces the risk of data manipulation or service disruption directly from this vulnerability. However, the ease of exploitation (no authentication or user interaction required) increases the likelihood of automated scanning and exploitation attempts, especially in exposed environments. Organizations in sectors with strict data protection regulations (e.g., GDPR) must consider the implications of any data leakage, even if limited. Additionally, if the exposed data includes configuration or business logic details, it could indirectly facilitate more severe attacks. The absence of known exploits reduces immediate risk, but the medium severity score and public disclosure necessitate prompt attention to prevent future exploitation.

Given the absence of official patches or vendor advisories, European organizations should implement the following specific mitigations: 1) Conduct a thorough inventory to identify all instances of Jeecg-boot v3.4.3 in use, focusing on applications exposing the /sys/dict/queryTableData endpoint. 2) Apply input validation and parameterized queries or prepared statements in the affected component to sanitize inputs and prevent injection. If source code access is available, developers should refactor the vulnerable query logic accordingly. 3) Employ Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection patterns targeting the vulnerable endpoint, including typical payloads and anomalous query parameters. 4) Restrict network exposure of the affected services by limiting access to trusted internal networks or VPNs, reducing the attack surface. 5) Monitor application logs and network traffic for suspicious activity indicative of SQL injection attempts, such as unusual query strings or error messages related to database syntax. 6) Prepare for patch deployment by tracking vendor updates or community patches for Jeecg-boot and plan timely updates once available. 7) Educate development and security teams on secure coding practices to prevent similar injection flaws in future releases.