CVE-2005-4743 in Nephp Publisher
Summary
by MITRE
Multiple SQL injection vulnerabilities in index.php in NeLogic Nephp Publisher 4.5.2 and earlier allow remote attackers to execute arbitrary SQL commands via the (1) id and (2) nnet_catid parameters.
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Analysis
by VulDB Data Team • 08/31/2017
The vulnerability identified as CVE-2005-4743 represents a critical security flaw in NeLogic Nephp Publisher version 4.5.2 and earlier, where multiple SQL injection vulnerabilities exist within the index.php script. This vulnerability classifies under CWE-89 which specifically addresses SQL injection attacks, making it one of the most prevalent and dangerous web application security weaknesses. The flaw manifests through two distinct parameter vectors: the id parameter and the nnet_catid parameter, both of which are susceptible to malicious input manipulation that can bypass normal application security controls.
The technical exploitation of this vulnerability occurs when user input values are directly incorporated into SQL query construction without proper sanitization or parameterization. Attackers can craft malicious payloads that manipulate the database query structure by injecting additional SQL commands through these vulnerable parameters. When the application processes these parameters, the injected SQL code executes within the database context, potentially allowing full database access, data extraction, modification, or deletion. The vulnerability's impact is amplified because it affects core application functionality parameters that are likely to be present in normal application usage patterns, making detection and exploitation relatively straightforward.
From an operational perspective, this vulnerability creates significant risk for organizations utilizing NeLogic Nephp Publisher, as it enables remote attackers to execute arbitrary SQL commands without authentication. The implications extend beyond simple data theft to include complete system compromise, data integrity violations, and potential denial of service conditions. The attack surface is particularly concerning because SQL injection vulnerabilities of this nature can be exploited from any location with network access to the vulnerable application, making it a prime target for automated scanning tools and opportunistic attackers. The vulnerability also aligns with ATT&CK technique T1190 which describes exploitation of vulnerabilities in web applications, specifically targeting SQL injection as a means to achieve unauthorized access to database systems.
Mitigation strategies for CVE-2005-4743 must prioritize immediate remediation through patching the NeLogic Nephp Publisher application to a version that properly sanitizes user input. Organizations should implement proper input validation and parameterized queries to prevent SQL injection attacks, ensuring all user-supplied data is properly escaped or parameterized before database interaction. The implementation of web application firewalls and intrusion detection systems can provide additional defense layers, while regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other application components. Database access controls and principle of least privilege should be enforced to limit the damage potential even if exploitation occurs. Additionally, monitoring for unusual database query patterns and implementing proper error handling that does not expose database structure information to end users is essential for reducing the attack surface and preventing successful exploitation attempts.