CVE-2022-46337 is a critical vulnerability in Apache Derby that allows a cleverly devised username to bypass LDAP authentication checks. This vulnerability, classified with a CVSS score of 9.8, poses significant risks to organizations, as it could lead to unauthorized disk space consumption by creating junk Derby databases and potential malware execution. The impact of this vulnerability extends to sensitive data exposure, allowing attackers to view and corrupt data and execute sensitive database functions.
Due to its critical severity, organizations should prioritize patching immediately. The vulnerability affects LDAP-authenticated Derby installations, where the improper authorization could lead to catastrophic outcomes, including data loss and integrity issues. As of now, there is no public exploit confirmed, but the potential for exploitation exists, making it imperative for defenders to take action.
Mitigation steps involve upgrading to Java 21 and Derby 10.17.1.0. Users who prefer to remain on earlier Java versions should build their own Derby distribution from release families 10.16, 10.15, or 10.14, which have the necessary fixes backported. Organizations must also remain vigilant about this vulnerability as it has been modified in its status, indicating ongoing attention from security researchers.
With the potential for high-impact exploitation, organizations must ensure their systems are updated without delay, as this vulnerability can significantly affect business operations and data integrity.
Vulnerability Details
The official description of CVE-2022-46337 states that a cleverly devised username might bypass LDAP authentication checks. In LDAP-authenticated Derby installations, this could let an attacker fill up the disk by creating junk Derby databases. It may also allow the attacker to execute malware that was visible to and executable by the account that booted the Derby server. Furthermore, in LDAP-protected databases that aren't also protected by SQL GRANT/REVOKE authorization, this vulnerability could allow an attacker to view and corrupt sensitive data and run sensitive database functions and procedures.
The CVSS score for this vulnerability is 9.8, indicating a critical severity level. The vulnerability is classified under CWE-74, which pertains to improper neutralization in commands.
The affected product is Apache Derby, specifically versions from 10.1.1.0 to 10.14.3.0 and from 10.15.1.3 to 10.15.2.1. The latest fixed version is Derby 10.17.1.0.
Technical Analysis
The root cause of CVE-2022-46337 lies in the way Apache Derby processes usernames during LDAP authentication. Attackers can leverage this flaw by crafting usernames that manipulate the authentication mechanism, thereby gaining unauthorized access to the system. The attack vector is primarily network-based, with low complexity, requiring no privileges or user interaction.
Once an attacker successfully bypasses the LDAP checks, they can not only create junk databases but also execute arbitrary code within the context of the application. This poses a high risk to confidentiality, integrity, and availability, as attackers can corrupt sensitive data, disrupt service availability, and potentially execute malicious commands on the system.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2022-46337 is substantial, particularly for organizations using LDAP authentication with Derby. Given the critical CVSS score of 9.8, the urgency for organizations to address this vulnerability is high. Failure to patch could result in significant data breaches, unauthorized access, and potential service disruptions.
The blast radius for this vulnerability is extensive, affecting all installations of Apache Derby that utilize LDAP authentication without proper security controls such as SQL GRANT/REVOKE. Therefore, organizations must evaluate their exposure and prioritize remediation efforts accordingly.
The exploitation status shows that there is currently no known exploit available, but given the critical nature of this vulnerability, the potential for active exploitation remains a concern. Organizations should prioritize patching immediately and assess their systems for any signs of exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of Apache Derby include those from 10.1.1.0 to 10.14.3.0, and from 10.15.1.3 to 10.15.2.1. Users are strongly advised to upgrade to Derby 10.17.1.0, where this vulnerability has been addressed.
Mitigation & Remediation
To mitigate the risks associated with CVE-2022-46337, users should upgrade to Java 21 and Derby 10.17.1.0. Alternatively, users wishing to remain on older Java versions should build their own Derby distribution from one of the release families to which the fix was backported: 10.16, 10.15, and 10.14.
Organizations can benefit from engaging in penetration testing to validate the effectiveness of their remediation efforts and ensure that no similar vulnerabilities are present.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor for unusual log indicators, particularly related to LDAP authentication failures. Behavioral anomalies such as unexpected database creation or modification should also be flagged for further investigation.
Network signatures indicating unauthorized access attempts or unusual traffic patterns to the Derby server may also provide clues to exploitation attempts. Monitoring system changes can help identify any unauthorized modifications that may result from an attack exploiting this vulnerability.
AppSecure Threat Intelligence Insight
CVE-2022-46337 highlights a critical vulnerability that underscores the importance of robust authentication mechanisms within applications. This incident reflects a broader trend in which LDAP vulnerabilities are increasingly targeted by attackers seeking unauthorized access to sensitive data.
Security teams must take lessons from this vulnerability to enhance their security posture by implementing strict access controls, regular audits of authentication systems, and timely updates to software components. By engaging in proactive security measures, organizations can better defend against similar vulnerabilities in the future.
For further insights into managing vulnerabilities, organizations should explore resources such as the vulnerability management program and consider adopting best practices shared in our penetration testing methodology guide.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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