CVE-2007-1511 in Relational Database Server
Summary
by MITRE
Buffer overflow in FrontBase Relational Database Server 4.2.7 and earlier allows remote authenticated users, with privileges for creating a stored procedure, to execute arbitrary code via a CREATE PROCEDURE request with a long procedure name.
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Analysis
by VulDB Data Team • 10/08/2017
The vulnerability identified as CVE-2007-1511 represents a critical buffer overflow flaw within the FrontBase Relational Database Server version 4.2.7 and earlier releases. This security weakness specifically affects the database server's handling of stored procedure creation operations, creating a potential pathway for remote code execution. The vulnerability requires an authenticated user with specific privileges to exploit, making it less accessible than unauthenticated attacks but still posing significant risk to database environments where such privileges are granted to less privileged users or applications.
The technical nature of this flaw stems from inadequate input validation within the CREATE PROCEDURE request processing mechanism. When a user with appropriate privileges submits a CREATE PROCEDURE command containing an excessively long procedure name, the database server fails to properly bounds-check the input data before copying it into a fixed-size buffer. This classic buffer overflow condition occurs because the system does not enforce length limitations on procedure names, allowing maliciously crafted input to overwrite adjacent memory locations. The vulnerability manifests during the parsing and storage of the procedure definition, where the insufficient buffer management creates opportunities for memory corruption that can be leveraged by attackers to inject and execute arbitrary code within the database server process context.
From an operational perspective, this vulnerability presents a substantial risk to organizations relying on FrontBase database systems, particularly those with less restrictive access controls or where application developers grant database privileges to applications that may be compromised. The requirement for authenticated access with stored procedure creation privileges means that attackers must first gain valid credentials or exploit other vulnerabilities to reach this point, but once achieved, the potential for remote code execution provides attackers with elevated privileges within the database environment. This could lead to data exfiltration, unauthorized data modification, privilege escalation, or even use as a foothold for further network infiltration. The impact extends beyond immediate database compromise as successful exploitation could enable attackers to access underlying operating system resources or other database systems within the network.
The vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and demonstrates characteristics consistent with ATT&CK technique T1059.002 for command and script injection. Organizations should implement immediate mitigations including applying the vendor-provided patches or updates that address the buffer overflow in the stored procedure handling code. Additionally, access controls should be reviewed and restricted to minimize the number of users with stored procedure creation privileges. Network segmentation and monitoring of database server communications can help detect suspicious CREATE PROCEDURE requests with unusually long procedure names. Database administrators should also consider implementing input validation measures at the application level and regularly audit database user privileges to ensure least-privilege principles are maintained. The vulnerability underscores the importance of proper input validation and memory management practices in database server implementations, particularly in systems handling user-provided data that undergoes processing and storage operations.