CVE-2014-5335 in innovaphone PBX
Summary
by MITRE
Multiple cross-site request forgery (CSRF) vulnerabilities in innovaphone PBX 10.00 sr11 and earlier allow remote attackers to hijack the authentication of administrators for requests that modify configurations or user accounts, as demonstrated by (1) changing the administrator password via a crafted request to CMD0/mod_cmd.xml or (2) adding a new SIP user via a crafted request to PBX0/ADMIN/mod_cmd_login.xml.
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Analysis
by VulDB Data Team • 12/26/2024
The CVE-2014-5335 vulnerability represents a critical cross-site request forgery flaw in innovaphone PBX systems version 10.00 sr11 and earlier, exposing organizations to significant administrative compromise risks. This vulnerability falls under the CWE-352 category, which specifically addresses Cross-Site Request Forgery weaknesses in web applications. The flaw exists in the authentication handling mechanisms of the PBX administration interface, where the system fails to properly validate the origin of requests or implement anti-CSRF tokens for critical administrative operations.
The technical implementation of this vulnerability allows remote attackers to exploit the lack of proper request validation by crafting malicious HTTP requests that appear to originate from authenticated administrators. The vulnerability manifests through specific endpoints such as CMD0/mod_cmd.xml and PBX0/ADMIN/mod_cmd_login.xml, which are used for configuration modifications and user account management respectively. When an administrator visits a malicious website or clicks on a compromised link, the attacker can automatically submit requests to these endpoints without the administrator's knowledge or consent, leveraging the existing authentication session.
The operational impact of this vulnerability extends far beyond simple privilege escalation, as it provides attackers with complete administrative control over the PBX system. Successful exploitation enables attackers to modify critical system configurations, change administrator passwords, add new SIP user accounts, and potentially gain access to sensitive communication data. This represents a severe threat to enterprise communication security, as PBX systems often serve as central points for voice and data communication within organizations, making them prime targets for attackers seeking persistent access or data exfiltration capabilities.
The attack vector for this vulnerability demonstrates the classic CSRF exploitation pattern where attackers craft malicious requests that leverage the victim's authenticated session to perform unauthorized actions. According to ATT&CK framework technique T1566, this vulnerability enables initial access through credential access methods, while technique T1078 covers legitimate credential use. Organizations affected by this vulnerability face potential disruption of communication services, unauthorized access to sensitive data, and possible compliance violations. The vulnerability also increases the risk of lateral movement within networks, as PBX systems often integrate with other enterprise systems and may contain credentials for other services.
Mitigation strategies for CVE-2014-5335 should prioritize immediate system updates to versions that address the CSRF implementation flaws. Organizations should implement proper anti-CSRF token mechanisms for all administrative endpoints, ensure proper request origin validation, and deploy web application firewalls to monitor for suspicious patterns. Additionally, network segmentation should be implemented to limit access to PBX administrative interfaces, and regular security assessments should verify that authentication mechanisms properly validate request sources. The vulnerability highlights the importance of proper input validation and session management in web-based administrative interfaces, particularly in enterprise communication systems where unauthorized access can have significant operational and security implications.