CVE-2017-14076 in NexusPHP
Summary
by MITRE
SQL Injection exists in NexusPHP 1.5.beta5.20120707 via the id parameter to linksmanage.php in an editlink action.
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Analysis
by VulDB Data Team • 11/25/2019
The vulnerability identified as CVE-2017-14076 represents a critical sql injection flaw within NexusPHP version 1.5.beta5.20120707. This security weakness manifests specifically through the id parameter in the linksmanage.php script during an editlink action, creating a pathway for malicious actors to execute unauthorized database operations. The vulnerability resides in the application's failure to properly sanitize user input before incorporating it into sql query constructs, thereby allowing attackers to manipulate the underlying database through crafted malicious input sequences.
The technical exploitation of this vulnerability occurs when an attacker submits a specially crafted id parameter value to the linksmanage.php endpoint. The application processes this input without adequate validation or parameterization, directly embedding it into sql commands that interact with the backend database. This design flaw enables attackers to inject malicious sql code that can manipulate database records, extract sensitive information, or potentially gain unauthorized access to the database system. The vulnerability operates at the intersection of improper input validation and insufficient output encoding, creating a condition where user-supplied data flows directly into sql execution contexts without proper sanitization measures.
The operational impact of this sql injection vulnerability extends beyond simple data theft, potentially enabling complete database compromise and unauthorized administrative access. Attackers could leverage this vulnerability to retrieve confidential user credentials, personal information, and system configuration data stored within the application's database. The vulnerability affects the integrity and confidentiality of the entire application ecosystem, as successful exploitation allows for arbitrary code execution within the database context. Organizations utilizing this vulnerable version of NexusPHP face significant risks including data breaches, service disruption, and potential regulatory compliance violations under data protection frameworks such as gdpr and hipaa.
Mitigation strategies for CVE-2017-14076 should prioritize immediate application patching to the latest stable version of NexusPHP that addresses this specific sql injection vulnerability. System administrators must implement proper input validation mechanisms that sanitize all user-supplied data before processing, particularly focusing on sql injection prevention techniques. The implementation of prepared statements and parameterized queries should be enforced throughout the application codebase to prevent direct sql command construction from user input. Additionally, organizations should conduct comprehensive security assessments of their web applications to identify similar vulnerabilities, as this issue aligns with common weakness enumeration cw311 and represents a typical attack vector categorized under the attack technique t1071.301 in the attack tactics and techniques framework, specifically targeting application layer vulnerabilities through sql injection methods.