SB2023101881 - Multiple vulnerabilities in Oracle Communications Cloud Native Core Security Edge Protection Proxy

Description

This security bulletin contains information about 6 secuirty vulnerabilities.

1) Resource exhaustion (CVE-ID: CVE-2023-26048)

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 when processing multipart requests in request.getParameter(). A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

2) 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.

3) 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.

4) Incorrect default permissions (CVE-ID: CVE-2023-2976)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions in com.google.common.io.FileBackedOutputStream. A local user with access to the system can view contents of files and directories or modify them.

5) 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.

6) Security features bypass (CVE-ID: CVE-2023-34034)

The vulnerability allows a remote attacker to bypass security restrictions.

The vulnerability exists due to the usage of "**" as a pattern in Spring Security configuration for WebFlux creates a mismatch in pattern matching between Spring Security and Spring WebFlux. A remote unauthenticated attacker can trigger the vulnerability to bypass security restrictions.

Remediation

Install update from vendor's website.

References

• https://www.oracle.com/security-alerts/cpuoct2023.html?936686