CVE-2006-5589 in LedgerSMB
Summary
by MITRE
Multiple SQL injection vulnerabilities in LedgerSMB (LSMB) 1.1.0 and earlier allow remote attackers to execute arbitrary SQL commands via unspecified vectors in (1) OE.pm, (2) AM.pm, and (3) Form.pm.
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Analysis
by VulDB Data Team • 04/25/2026
The vulnerability identified as CVE-2006-5589 represents a critical SQL injection flaw affecting LedgerSMB versions 1.1.0 and earlier. This vulnerability resides within the application's core modules including OE.pm, AM.pm, and Form.pm which handle order entry, asset management, and form processing functionalities respectively. The vulnerability allows remote attackers to inject malicious SQL commands through unspecified input vectors, potentially compromising the entire database infrastructure. This type of vulnerability falls under CWE-89 which specifically addresses SQL injection flaws where untrusted data is incorporated into SQL queries without proper sanitization or parameterization. The attack surface is particularly concerning as these modules handle sensitive business data including financial transactions, asset records, and operational workflows that form the backbone of enterprise accounting systems.
The technical exploitation of this vulnerability occurs when user-supplied input is directly concatenated into SQL query strings without proper validation or escaping mechanisms. Attackers can manipulate the application's behavior by injecting malicious SQL fragments that bypass authentication, extract confidential data, modify records, or even execute destructive operations on the underlying database. The fact that multiple modules are affected suggests a systemic flaw in the application's input handling architecture, indicating that the developers failed to implement consistent security measures across the codebase. This vulnerability aligns with ATT&CK technique T1190 which describes the exploitation of vulnerabilities in web applications through SQL injection attacks. The remote nature of the attack means that malicious actors can exploit this weakness from anywhere on the internet without requiring physical access or local network presence.
The operational impact of CVE-2006-5589 extends far beyond simple data theft, as successful exploitation can lead to complete system compromise and unauthorized financial transactions. Organizations using affected LedgerSMB versions face significant risks including data breaches, financial fraud, regulatory violations, and potential legal consequences. The vulnerability affects business continuity since attackers could manipulate order processing, asset management records, and form submissions which are critical for operational workflows. Additionally, the compromised database could serve as a foothold for further attacks within the network infrastructure, potentially enabling lateral movement and escalation of privileges. The vulnerability's age and the widespread use of LedgerSMB in small to medium enterprises make it particularly dangerous as many organizations may not have proper security monitoring in place to detect such attacks. Organizations should immediately implement mitigation strategies including input validation, parameterized queries, and regular security updates to protect against this and similar vulnerabilities.
The remediation approach for this vulnerability requires immediate patching of the affected LedgerSMB versions to the latest stable releases that contain proper SQL injection防护 mechanisms. Organizations should also implement web application firewalls to monitor and filter suspicious SQL injection attempts, conduct comprehensive code reviews to identify similar vulnerabilities in other modules, and establish robust input validation protocols. Security teams should perform regular penetration testing and vulnerability assessments to ensure that similar flaws are not present in other applications or systems. The vulnerability demonstrates the critical importance of secure coding practices and proper database access controls in financial applications where data integrity and confidentiality are paramount. Organizations must also consider implementing database activity monitoring solutions to detect anomalous SQL query patterns that could indicate exploitation attempts.