CVE-2011-0382 in Telepresence Recording Server Software
Summary
by MITRE
The CGI subsystem on Cisco TelePresence Recording Server devices with software 1.6.x before 1.6.2 allows remote attackers to execute arbitrary commands via a request to TCP port 443, related to a "command injection vulnerability," aka Bug ID CSCtf97221.
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Analysis
by VulDB Data Team • 08/03/2024
The vulnerability identified as CVE-2011-0382 represents a critical command injection flaw within the CGI subsystem of Cisco TelePresence Recording Server devices. This security weakness specifically affects software versions 1.6.x prior to 1.6.2, creating a significant attack surface that enables remote adversaries to execute arbitrary commands on affected systems. The vulnerability manifests through requests directed to TCP port 443, which is typically used for secure web communications, making the attack vector particularly insidious as it leverages legitimate secure communication channels. The flaw stems from inadequate input validation within the CGI processing components, allowing malicious actors to inject and execute system commands without proper authentication or authorization.
The technical implementation of this vulnerability involves the exploitation of insufficient sanitization of user-supplied input within the CGI interface. When the TelePresence Recording Server processes requests through its web interface on port 443, it fails to properly validate or escape parameters that are passed to underlying system commands. This creates an environment where attacker-controlled input can be interpreted and executed as legitimate system commands, effectively granting remote code execution capabilities. The vulnerability is categorized under CWE-77 as "Command Injection," which is a well-documented weakness in software applications that execute commands based on user input without proper validation. The attack scenario typically involves sending specially crafted HTTP requests that contain malicious command sequences, which are then processed by the vulnerable CGI subsystem and executed with the privileges of the web server process.
The operational impact of CVE-2011-0382 extends beyond simple unauthorized access, as successful exploitation can lead to complete system compromise and potential lateral movement within network environments. Attackers can leverage this vulnerability to gain full control over the affected TelePresence Recording Server, potentially accessing stored recordings, modifying system configurations, or using the compromised device as a pivot point for attacking other network resources. The vulnerability aligns with ATT&CK technique T1059.001 for Command and Scripting Interpreter, specifically targeting the execution of system commands through web interfaces. Organizations utilizing Cisco TelePresence solutions face significant risk, as these devices often store sensitive video conferencing data and may be deployed in environments with restricted network access. The vulnerability's remote exploitability means that attackers do not require physical access or network credentials to initiate attacks, making it particularly dangerous in enterprise environments where such devices may be exposed to external networks.
Mitigation strategies for CVE-2011-0382 primarily focus on immediate software updates and network-level protections. Cisco released software patches addressing this vulnerability in version 1.6.2, making the most critical remediation the deployment of the updated firmware or software releases. Network administrators should also implement firewall rules to restrict access to TCP port 443 on affected devices, particularly when external access is not required for legitimate business operations. The principle of least privilege should be enforced by ensuring that only authorized personnel have access to the device management interfaces. Additionally, organizations should consider implementing network segmentation strategies that isolate TelePresence devices from critical network segments, reducing the potential impact of successful exploitation. Monitoring for unusual network traffic patterns or unauthorized access attempts on port 443 can help detect potential exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security patches and implementing comprehensive vulnerability management processes to prevent such critical flaws from being exploited in operational environments.