CVE-2021-2173 is a vulnerability in the Recovery component of Oracle Database Server, impacting supported versions 12.1.0.2, 12.2.0.1, 18c, and 19c. The vulnerability allows a high privileged attacker with DBA Level Account privileges and network access via Oracle Net to compromise Recovery. Although the vulnerability is specifically in the Recovery component, successful attacks may have significant repercussions on additional products, potentially leading to unauthorized read access to a subset of Recovery accessible data.
The CVSS 3.1 Base Score for this vulnerability is 4.1, which is classified as medium severity. This score reflects a low confidentiality impact, indicating that while the exploitability is moderate, it can still pose a risk to organizations. Given the potential for unauthorized access to sensitive data, organizations should prioritize patching this vulnerability to mitigate associated risks.
As of the latest update, CVE-2021-2173 remains a concern. The last modified date of this CVE was November 21, 2024. Organizations using affected versions of the Oracle Database Server should take immediate action to protect their systems and sensitive data.
Organizations should prioritize patching immediately. The availability of a patch has been confirmed in the vendor advisory, and the CVE has been referenced in multiple security discussions across platforms.
Vulnerability Details
The vulnerability in question allows high privileged attackers to leverage their access to compromise the Recovery component. The CVSS score of 4.1 indicates a medium severity level, reflecting the vulnerability's potential impact on confidentiality. The affected products include Oracle Database Server versions 12.1.0.2, 12.2.0.1, 18c, and 19c. The vulnerability was published on April 22, 2021.
Technical Analysis
The root cause of CVE-2021-2173 stems from insufficient isolation within the Recovery component of Oracle Database Server, allowing unauthorized access to data. The attack vector is network-based, requiring only low attack complexity with high privileges required to exploit. No user interaction is necessary, further increasing the risk of successful exploitation. The confidentiality impact is low, as the vulnerability allows unauthorized read access to sensitive data, while integrity and availability impacts are not applicable.
Risk & Impact Analysis
The real-world risk associated with CVE-2021-2173 includes the potential for unauthorized access to sensitive Recovery data, which could lead to further attacks or data breaches. This vulnerability is particularly concerning for organizations that handle sensitive information or operate in regulated industries. Given its medium severity, organizations should assess their exposure and prioritize this vulnerability in their patch cycles.
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the Oracle Database Server include 12.1.0.2, 12.2.0.1, 18c, and 19c. Organizations should ensure that all versions prior to vendor patch are updated to the latest version to mitigate this vulnerability.
Mitigation & Remediation
To remediate CVE-2021-2173, Oracle has released patches as part of their Critical Patch Update. Organizations should review the patch information and apply updates to their systems. If immediate patching is not possible, consider implementing configuration hardening measures and monitoring for suspicious activities as interim controls. For further assistance, organizations may engage in penetration testing to identify potential vulnerabilities.
Detection Guidance
Organizations should monitor logs for unusual access patterns to Recovery components, especially from high privileged accounts. Behavioral anomalies that deviate from normal operations should be investigated promptly. Additional network signatures may be useful for detecting potential exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-2173 lies in highlighting the risks associated with inadequate isolation in database components. This vulnerability serves as a reminder for organizations to regularly assess their configurations and implement best practices for security. As a strategic defensive measure, organizations should consider adopting a comprehensive penetration testing methodology to ensure their systems are resilient against similar vulnerabilities in the future. Additionally, staying informed about emerging threats and maintaining an updated security posture is essential for mitigating risks.
The pattern represented by this vulnerability indicates a trend towards exploitation of database vulnerabilities, which have historically been overlooked. Security teams are encouraged to prioritize database security assessments and consider vulnerability management programs as a critical component of their security strategy.
In conclusion, organizations must remain vigilant and proactive in addressing vulnerabilities like CVE-2021-2173 to safeguard their data and infrastructure. Regular security assessments, timely patching, and a strong security culture will serve as the foundation for a resilient defense against future threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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