CVE-2015-1875 in Elastix
Summary
by MITRE
SQL injection vulnerability in a2billing/customer/iridium_threed.php in Elastix 2.5.0 and earlier allows remote attackers to execute arbitrary SQL commands via the transactionID parameter.
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Analysis
by VulDB Data Team • 01/18/2025
The CVE-2015-1875 vulnerability represents a critical SQL injection flaw within the Elastix 2.5.0 telephony management platform, specifically targeting the iridium_threed.php script located in the a2billing/customer directory. This vulnerability arises from insufficient input validation and sanitization of user-supplied data, creating an exploitable entry point for malicious actors to manipulate the underlying database system. The affected component processes the transactionID parameter without proper sanitization, allowing attackers to inject malicious SQL code that can be executed within the database context.
The technical implementation of this vulnerability stems from improper parameter handling within the PHP application layer where user input from the transactionID parameter directly influences database query construction. This flaw aligns with CWE-89, which categorizes SQL injection as a weakness where untrusted data is incorporated into SQL commands without proper escaping or parameterization. The vulnerability exists because the application fails to implement proper input validation, sanitization, or use of prepared statements to separate SQL command structure from data values. Attackers can exploit this by crafting malicious transactionID values that contain SQL payload sequences, potentially enabling complete database compromise including data exfiltration, modification, or deletion operations.
The operational impact of CVE-2015-1875 extends beyond simple data theft, as it provides attackers with the capability to execute arbitrary commands on the database server. This vulnerability can be leveraged to gain unauthorized access to sensitive telephony data including customer information, billing records, call logs, and potentially system credentials. The attack surface is particularly concerning in telephony environments where Elastix systems often store confidential information related to voice communications, billing details, and customer service records. The remote exploitation capability means attackers can target vulnerable systems without requiring physical access or local network presence, making this vulnerability highly dangerous for organizations relying on Elastix for their communication infrastructure.
Organizations affected by this vulnerability should prioritize immediate remediation through patching the Elastix platform to version 2.5.1 or later, which contains the necessary input validation fixes. Additionally, implementing proper input sanitization measures including parameterized queries, proper escaping of special characters, and comprehensive input validation should be enforced across all database interaction points. Network segmentation and access controls should be strengthened to limit exposure, while regular security auditing and penetration testing should be conducted to identify similar vulnerabilities. The ATT&CK framework categorizes this vulnerability under T1190 - Exploit Public-Facing Application, highlighting the importance of securing externally accessible web applications. Organizations should also implement database activity monitoring and logging to detect potential exploitation attempts, as the vulnerability could be used for reconnaissance purposes to map database structures and identify additional attack vectors within the system.