CVE-2012-0713 in DB2
Summary
by MITRE
Unspecified vulnerability in the XML feature in IBM DB2 9.7 before FP6 on Linux, UNIX, and Windows allows remote authenticated users to read arbitrary XML files via unknown vectors.
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Analysis
by VulDB Data Team • 12/12/2021
The vulnerability identified as CVE-2012-0713 represents a critical security flaw within IBM DB2 Database Server version 9.7 prior to fix pack 6 across multiple operating systems including Linux, UNIX, and Windows platforms. This issue specifically affects the XML processing functionality of the database system, creating a potential pathway for unauthorized data access that could compromise sensitive information stored within organizational databases. The vulnerability's classification as unspecified indicates that the exact technical mechanisms enabling the exploit were not fully detailed in the initial reporting, though the impact was clearly demonstrated through the ability of authenticated remote attackers to access arbitrary XML files.
The technical nature of this vulnerability stems from insufficient input validation and access control mechanisms within the XML processing components of IBM DB2. When the database server handles XML data, it appears that proper boundary checks and authorization controls were not adequately implemented, allowing authenticated users to manipulate XML processing requests in ways that could bypass normal file access restrictions. This flaw operates at the application layer of the database system where XML data is parsed, processed, and potentially stored or retrieved, making it particularly dangerous as it leverages legitimate database functionality to achieve unauthorized file access.
The operational impact of this vulnerability extends beyond simple data exposure, as it represents a significant breach in database security controls that could enable attackers to access sensitive XML documents containing potentially confidential information. Remote authenticated users who can establish connections to the database system can exploit this weakness to retrieve XML files that may contain customer data, financial records, or other proprietary information depending on the database content and structure. This vulnerability particularly affects organizations that rely heavily on XML data processing within their database environments, as it could lead to widespread data compromise across multiple database instances.
Organizations affected by CVE-2012-0713 should prioritize immediate remediation through the application of IBM's fix pack 6 for DB2 9.7, which addresses the underlying XML processing vulnerabilities. System administrators must also implement network segmentation and access controls to limit the number of authenticated users who can connect to database systems, reducing the attack surface available to potential adversaries. The vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, and may also relate to CWE-73, which covers improper control of a resource through a path manipulation attack, as the flaw enables path traversal through XML processing mechanisms.
From an enterprise security perspective, this vulnerability demonstrates the importance of maintaining current database security patches and monitoring for potential exploitation vectors within application-level features. Security teams should implement comprehensive logging of XML processing activities and establish monitoring procedures to detect anomalous access patterns that might indicate exploitation attempts. The ATT&CK framework categorizes this type of vulnerability under privilege escalation and credential access techniques, as attackers leverage legitimate authenticated access to expand their capabilities within the database environment. Organizations should also consider implementing database activity monitoring solutions that can detect and alert on suspicious XML processing behaviors that could indicate exploitation attempts.