CVE-2021-35683 : Security Advisory and Response

A vulnerability has been identified in the Oracle Essbase Administration Services product of Oracle Essbase, specifically in the EAS Console component. This vulnerability has a CVSS 3.1 Base Score of 9.9, posing critical impacts on confidentiality, integrity, and availability. It allows a low privileged attacker with network access via HTTP to compromise the Oracle Essbase Administration Services, potentially leading to a complete takeover.

Understanding CVE-2021-35683

This section will delve into what CVE-2021-35683 entails, its impact, technical details, as well as mitigation strategies.

What is CVE-2021-35683?

The vulnerability identified in CVE-2021-35683 affects the Oracle Essbase Administration Services product, particularly versions prior to 11.1.2.4.047. It is an easily exploitable vulnerability that enables a low privileged attacker to compromise the administration services, with the potential to impact additional products.

The Impact of CVE-2021-35683

The impact of CVE-2021-35683 is significant, with successful attacks resulting in the complete takeover of Oracle Essbase Administration Services. This vulnerability has a high CVSS score of 9.9, indicating critical impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2021-35683

This section will provide more insights into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Oracle Essbase Administration Services allows attackers with network access via HTTP to compromise the system, potentially impacting multiple products. Successful exploitation can lead to a complete takeover of the administration services.

Affected Systems and Versions

The vulnerability affects versions of the Hyperion Essbase Administration Services prior to 11.1.2.4.047. Users with these versions are at risk of exploitation and compromise.

Exploitation Mechanism

The exploitation of CVE-2021-35683 involves a low privileged attacker with network access leveraging HTTP to compromise Oracle Essbase Administration Services.

Mitigation and Prevention

This section will outline immediate steps to mitigate the vulnerability, as well as long-term security practices and the importance of patching and updates.

Immediate Steps to Take

Users are advised to update to the latest version (11.1.2.4.047) of Hyperion Essbase Administration Services to mitigate the vulnerability. Additionally, restricting network access and monitoring HTTP connections can help prevent exploitation.

Long-Term Security Practices

Implementing least privilege access, regular security assessments, and keeping systems up to date with security patches are crucial long-term security practices to prevent similar vulnerabilities.

Patching and Updates

Regularly checking for security updates from Oracle Corporation and promptly applying patches is essential in maintaining the security of Oracle Essbase Administration Services.