CVE-2007-4634 in Call Manager
Summary
by MITRE
Multiple SQL injection vulnerabilities in Cisco CallManager and Unified Communications Manager (CUCM) before 3.3(5)sr2b, 4.1 before 4.1(3)sr5, 4.2 before 4.2(3)sr2, and 4.3 before 4.3(1)sr1 allow remote attackers to execute arbitrary SQL commands via the lang variable to the (1) user or (2) admin logon page, aka CSCsi64265.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 07/14/2024
Cisco CallManager and Unified Communications Manager versions prior to specified patches contain multiple SQL injection vulnerabilities that pose significant security risks to enterprise communication systems. These vulnerabilities exist in the authentication handling mechanisms of the web interfaces, specifically affecting the user and admin login pages where the lang parameter is processed without proper input sanitization. The flaw allows remote attackers to inject malicious SQL commands through the lang variable, potentially gaining unauthorized access to the underlying database systems that store user credentials, configuration data, and communication records. This vulnerability is particularly dangerous because it targets the authentication layer of critical communication infrastructure, enabling attackers to bypass normal access controls and escalate privileges within the system.
The technical implementation of this vulnerability stems from improper parameter validation and sanitization in the web application code handling the lang variable. When users access the login pages, the system processes the lang parameter to determine language localization settings but fails to properly escape or validate input before incorporating it into SQL queries. This classic SQL injection flaw allows attackers to manipulate the database queries by injecting malicious SQL syntax that can alter the intended query behavior. The vulnerability affects multiple product versions across different release branches, indicating a systemic issue in the codebase that was not properly addressed in the authentication modules. According to CWE classification, this represents a CWE-89: SQL Injection vulnerability that specifically impacts the authentication and authorization mechanisms of the system.
The operational impact of this vulnerability extends beyond simple data theft or unauthorized access. Attackers who successfully exploit these vulnerabilities can execute arbitrary SQL commands on the database servers, potentially leading to complete system compromise, data exfiltration, and disruption of critical communication services. The affected systems store sensitive information including user accounts, phone configurations, call logs, and potentially voice mail messages that could be accessed or modified by unauthorized parties. Additionally, the ability to manipulate database queries could enable attackers to escalate privileges, create backdoor accounts, or even corrupt critical system data that would require extensive recovery efforts. This vulnerability directly impacts the confidentiality, integrity, and availability of enterprise communication infrastructure, making it a critical concern for organizations relying on Cisco CallManager and Unified Communications Manager solutions.
Organizations should immediately implement the vendor-provided patches for Cisco CallManager and Unified Communications Manager versions before the specified service release versions to remediate this vulnerability. The patches address the input validation issues in the authentication modules and implement proper parameter sanitization for the lang variable. Network segmentation and access controls should be enforced to limit exposure of the affected web interfaces to untrusted networks, while monitoring systems should be configured to detect unusual database access patterns or authentication attempts that might indicate exploitation attempts. Security teams should also consider implementing web application firewalls to provide additional protection against SQL injection attacks targeting these interfaces. According to ATT&CK framework, this vulnerability maps to T1190: Exploit Public-Facing Application and T1071.004: Application Layer Protocol: DNS, indicating the need for both perimeter defense and internal monitoring to detect and prevent exploitation attempts. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other communication systems and ensure comprehensive protection against SQL injection threats.