CVE-2019-2853 : Security Advisory and Response

A vulnerability has been identified in the Outside In Technology component of Oracle Fusion Middleware, affecting multiple versions of Oracle Text. This vulnerability can be exploited by an unauthenticated attacker via HTTP, potentially leading to unauthorized data manipulation and partial denial of service.

Understanding CVE-2019-2853

This CVE pertains to a vulnerability in Oracle Text versions 11.2.0.4, 12.1.0.2, 12.2.0.1, 18c, and 19c.

What is CVE-2019-2853?

The vulnerability exists in the Outside In Filters subcomponent of Oracle Fusion Middleware's Outside In Technology. An attacker with network access via HTTP can compromise Oracle Outside In Technology, potentially resulting in unauthorized data manipulation and partial denial of service.

The Impact of CVE-2019-2853

The vulnerability allows unauthorized access to Oracle Outside In Technology data, including update, insert, or delete capabilities. It may also grant read access to some data and the ability to cause a partial denial of service. The CVSS 3.0 Base Score is 7.3, indicating impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2019-2853

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in the Outside In Filters subcomponent of Oracle Fusion Middleware's Outside In Technology allows unauthenticated attackers to compromise the system via HTTP.

Affected Systems and Versions

Oracle Text 11.2.0.4
Oracle Text 12.1.0.2
Oracle Text 12.2.0.1
Oracle Text 18c
Oracle Text 19c

Exploitation Mechanism

The vulnerability can be exploited by an unauthenticated attacker with network access via HTTP, potentially leading to unauthorized data manipulation and partial denial of service.

Mitigation and Prevention

Protecting systems from CVE-2019-2853 requires immediate action and long-term security practices.

Immediate Steps to Take

Apply patches provided by Oracle to address the vulnerability.
Monitor network traffic for any suspicious activity.
Restrict network access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.
Conduct regular security assessments and audits.

Patching and Updates

Oracle has released patches to address CVE-2019-2853. It is crucial to apply these patches promptly to mitigate the risk of exploitation.