SB2023101782 - Multiple vulnerabilities in Oracle FLEXCUBE Universal Banking

Description

This security bulletin contains information about 6 secuirty vulnerabilities.

1) Improper input validation (CVE-ID: CVE-2023-22117)

The vulnerability allows a remote authenticated user to read and manipulate data.

The vulnerability exists due to improper input validation within the Infrastructure component in Oracle FLEXCUBE Universal Banking. A remote authenticated user can exploit this vulnerability to read and manipulate data.

2) Improper input validation (CVE-ID: CVE-2023-22119)

The vulnerability allows a remote authenticated user to read, manipulate or delete data.

The vulnerability exists due to improper input validation within the Infrastructure component in Oracle FLEXCUBE Universal Banking. A remote authenticated user can exploit this vulnerability to read, manipulate or delete data.

3) Input validation error (CVE-ID: CVE-2023-20863)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote user can use a specially crafted SpEL expression and perform a denial of service (DoS) attack.

4) Resource exhaustion (CVE-ID: CVE-2023-34462)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources if no idle timeout handler was configured. A remote attacker can send a client hello packet, which leads the server to buffer up to 16MB of data per connection and results in a denial of service condition.

5) Improper input validation (CVE-ID: CVE-2023-22118)

The vulnerability allows a remote authenticated user to read and manipulate data.

The vulnerability exists due to improper input validation within the Infrastructure component in Oracle FLEXCUBE Universal Banking. A remote authenticated user can exploit this vulnerability to read and manipulate data.

6) Resource management error (CVE-ID: CVE-2023-20883)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Specifically, an application is vulnerable if all of the conditions are true:

• The application has Spring MVC auto-configuration enabled. This is the case by default if Spring MVC is on the classpath.
• The application makes use of Spring Boot's welcome page support, either static or templated.
• Your application is deployed behind a proxy which caches 404 responses.

Remediation

Install update from vendor's website.

References

• https://www.oracle.com/security-alerts/cpuoct2023.html?3368