CVE-2019-2771 Explained : Impact and Mitigation
Learn about CVE-2019-2771, a vulnerability in Oracle BI Publisher Security allowing attackers to compromise systems via HTTP. Understand the impact, affected versions, and mitigation steps.
A vulnerability in the BI Publisher component of Oracle Fusion Middleware, affecting versions 11.1.1.9.0 and 12.2.1.3.0, allows attackers to compromise BI Publisher via HTTP.
Understanding CVE-2019-2771
This CVE involves a security flaw in Oracle's BI Publisher component, potentially impacting data integrity and availability.
What is CVE-2019-2771?
The vulnerability in the BI Publisher Security subcomponent of Oracle Fusion Middleware allows low-privileged attackers to exploit BI Publisher via network access.
The Impact of CVE-2019-2771
- Successful exploitation can lead to unauthorized data manipulation, deletion, or creation within BI Publisher.
- Attackers may gain unauthorized read access to data and disrupt BI Publisher's availability.
- The CVSS 3.0 Base Score of 8.2 highlights impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2019-2771
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability in BI Publisher allows attackers with network access via HTTP to compromise the system, potentially impacting critical data and overall system availability.
Affected Systems and Versions
- Product: BI Publisher (formerly XML Publisher)
- Vendor: Oracle Corporation
- Affected Versions: 11.1.1.9.0, 12.2.1.3.0
Exploitation Mechanism
- Low-privileged attackers with network access via HTTP can exploit the vulnerability.
- Successful attacks require human interaction beyond the attacker.
- The vulnerability can significantly impact additional products beyond BI Publisher.
Mitigation and Prevention
Protecting systems from CVE-2019-2771 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Oracle promptly.
- Monitor network traffic for any suspicious activity.
- Restrict network access to critical systems.
Long-Term Security Practices
- Conduct regular security assessments and audits.
- Educate users on safe browsing habits and security best practices.
- Implement network segmentation to limit the attack surface.
Patching and Updates
- Regularly update and patch BI Publisher and related software to address known vulnerabilities.