CVE-2012-4970 in Hdx System Software
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the web management interface on Polycom HDX Video End Points with UC APL software before 2.7.1.1_J, and commercial software before 3.0.5, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 02/09/2018
The CVE-2012-4970 vulnerability represents a critical cross-site scripting flaw discovered in Polycom HDX video endpoints running specific versions of their Unified Communications Application Platform software. This vulnerability specifically affects the web management interface of these devices, creating a significant security risk for organizations relying on Polycom video conferencing solutions. The flaw exists in both UC APL software versions prior to 2.7.1.1_J and commercial software versions before 3.0.5, indicating a widespread impact across multiple product lines. The vulnerability allows remote attackers to execute malicious web scripts or HTML code within the context of the affected web interface, potentially compromising the security posture of the entire video conferencing infrastructure.
The technical nature of this vulnerability stems from insufficient input validation and output encoding within the web management interface of Polycom HDX devices. Attackers can exploit unspecified vectors to inject malicious code that will execute when other users access the affected management interface. This type of vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws where untrusted data is improperly sanitized before being rendered in web pages. The vulnerability is particularly dangerous because it operates at the web interface level, meaning that any user with access to the management console could become a vector for attack propagation. The unspecified vectors suggest that the attack surface may include multiple input points within the web interface, making the vulnerability difficult to fully mitigate without comprehensive patching.
The operational impact of CVE-2012-4970 extends beyond simple script injection, as it provides attackers with potential access to sensitive device configurations and management functions. Organizations using affected Polycom HDX endpoints face risks including unauthorized access to video conferencing systems, potential data exfiltration, and the possibility of establishing persistent access points within their network infrastructure. The vulnerability could enable attackers to manipulate device settings, intercept communications, or use the compromised interface as a stepping stone for further attacks within the network. According to ATT&CK framework, this vulnerability maps to T1059.007 for script injection techniques and potentially T1566 for initial access through web application vulnerabilities. The remote nature of the attack means that organizations do not need to be physically present to exploit this flaw, making it particularly concerning for distributed enterprise environments.
Mitigation strategies for CVE-2012-4970 primarily focus on immediate software updates to versions 2.7.1.1_J or later for UC APL software and 3.0.5 or later for commercial software. Organizations should also implement network segmentation to isolate affected devices from critical systems and apply web application firewalls to monitor and filter malicious traffic. Additional defensive measures include disabling unnecessary web management interfaces when not actively needed, implementing strict access controls for management interfaces, and conducting regular security assessments of video conferencing infrastructure. The vulnerability demonstrates the importance of maintaining up-to-date firmware and software versions, as well as the need for comprehensive security testing of all networked devices, particularly those with web-based management interfaces. Organizations should also consider implementing intrusion detection systems to monitor for exploitation attempts and establish incident response procedures specifically tailored to address web application vulnerabilities in video conferencing equipment.