CVE-2008-1821 in Database Server
Summary
by MITRE
Unspecified vulnerability in the Advanced Queuing component in Oracle Database 9.0.1.5 FIPS+, and 10.1.0.5 has unknown impact and remote attack vectors related to SYS.DBMS_AQJMS_INTERNAL, aka DB15. NOTE: the previous information was obtained from the April 2008 CPU. Oracle has not commented on reliable researcher claims that DB15 is for multiple buffer overflows in the (1) AQ$_REGISTER and (2) AQ$_UNREGISTER procedures.
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Analysis
by VulDB Data Team • 02/01/2025
The vulnerability identified as CVE-2008-1821 represents a critical security flaw within Oracle Database's Advanced Queuing component, specifically affecting versions 9.0.1.5 FIPS+ and 10.1.0.5. This issue manifests through the SYS.DBMS_AQJMS_INTERNAL package which serves as a bridge between Oracle's Advanced Queuing functionality and Java Message Service implementations. The vulnerability stems from improper input validation and memory handling within the AQ$_REGISTER and AQ$_UNREGISTER procedures, creating potential buffer overflow conditions that could be exploited by remote attackers. The lack of specific details in Oracle's initial disclosure, combined with researcher findings from the April 2008 Critical Patch Update, suggests this represents a sophisticated attack surface that could potentially allow for arbitrary code execution or system compromise. The vulnerability's classification as unspecified in terms of impact and attack vectors indicates the severity was initially underreported or inadequately assessed by the vendor.
The technical implementation of this vulnerability involves the manipulation of queue registration and unregistration procedures within Oracle's Advanced Queuing framework. When the AQ$_REGISTER and AQ$_UNREGISTER procedures process malformed input parameters, they fail to properly validate buffer boundaries, leading to potential memory corruption scenarios. This type of flaw aligns with CWE-121, which describes stack-based buffer overflow conditions, and potentially CWE-122, describing heap-based buffer overflows. The vulnerability can be exploited through remote network connections, making it particularly dangerous as it allows attackers to leverage the database's network services without requiring local system access. Attackers could potentially craft malicious input parameters that would cause stack or heap corruption during the queue registration process, potentially leading to privilege escalation or complete system compromise.
The operational impact of this vulnerability extends beyond simple database security concerns to encompass broader enterprise infrastructure risks. Organizations running affected Oracle Database versions face potential exposure to unauthorized data access, data corruption, or complete system compromise through remote exploitation. The Advanced Queuing component typically handles critical business processes including message queuing, event notification, and inter-application communication, making this vulnerability particularly dangerous in production environments. The remote attack vectors suggest that even organizations with firewalled database systems could be at risk, as the vulnerability could be exploited through legitimate database connection protocols. This type of vulnerability falls under ATT&CK technique T1068, which covers 'Exploitation for Privilege Escalation,' and potentially T1210, 'Exploitation of Remote Services,' given the remote attack surface.
Mitigation strategies for CVE-2008-1821 should focus on immediate patch management and network segmentation approaches. Organizations should prioritize applying Oracle's Critical Patch Update for April 2008, which specifically addresses the buffer overflow conditions in the affected procedures. Network segmentation should be implemented to restrict access to database services, particularly limiting direct network access to database servers from untrusted networks. Database access controls should be enhanced through proper user privilege management and the principle of least privilege enforcement. Monitoring systems should be configured to detect anomalous queue registration patterns or unusual database connection behavior that might indicate exploitation attempts. Additionally, organizations should consider disabling unnecessary database features and implementing network intrusion detection systems to identify potential exploitation attempts targeting the vulnerable Advanced Queuing component. The vulnerability's nature as a buffer overflow also suggests that implementing address space layout randomization and stack canaries could provide additional defense in depth measures against potential exploitation attempts.