CVE-2020-2517: Unauthorized Data Access in Oracle Database Gateway

The impact of CVE-2020-2517 stems from the ability of a privileged attacker to exploit the vulnerability to gain unauthorized access to data managed by the Database Gateway for ODBC. This could involve unauthorized updates, insertions, or deletions of data, potentially leading to data corruption or loss. Furthermore, the vulnerability can be leveraged to cause a partial denial of service (DoS), disrupting the availability of the gateway and impacting applications that rely on it. The difficulty of exploitation is considered low, but the potential impact warrants immediate attention, especially in environments where data integrity and availability are critical.

1. Reserved2019-12-10
2. Published2020-01-15
3. Modified2024-09-30
4. EPSS updated2026-04-02

The primary mitigation for CVE-2020-2517 is to upgrade to Oracle Database Server version 19.0.1 or later. If an immediate upgrade is not feasible, consider implementing stricter access controls and privilege management within the Oracle environment to limit the potential impact of a successful exploit. Review and restrict network access to the Database Gateway for ODBC. Monitor Oracle audit logs for suspicious activity related to the affected component. While a WAF cannot directly address this vulnerability, it can help detect and block malicious requests targeting the gateway.