CVE-2014-9144 in TD5130 Router
Summary
by MITRE
Technicolor Router TD5130 with firmware 2.05.C29GV allows remote attackers to execute arbitrary commands via shell metacharacters in the ping field (setobject_ip parameter).
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Analysis
by VulDB Data Team • 09/04/2024
The CVE-2014-9144 vulnerability affects Technicolor TD5130 routers running firmware version 2.05.C29GV, representing a critical command injection flaw that enables remote attackers to execute arbitrary code on affected devices. This vulnerability resides within the router's web administration interface where the ping functionality is implemented, specifically targeting the setobject_ip parameter that handles network diagnostic commands. The flaw stems from inadequate input validation and sanitization mechanisms that fail to properly escape or filter special shell metacharacters, allowing malicious actors to inject operating system commands directly through the web interface.
The technical implementation of this vulnerability exploits the router's insufficient sanitization of user-supplied input in the ping field, where attackers can append shell metacharacters such as semicolons, ampersands, or backticks to execute unauthorized commands on the underlying operating system. This occurs because the router's web application directly passes the ping parameter value to system shell commands without proper sanitization, creating a classic command injection vulnerability. The vulnerability is particularly dangerous as it operates over the network without requiring authentication, making it accessible to any remote attacker who can reach the router's web interface.
The operational impact of CVE-2014-9144 extends beyond simple command execution to encompass full system compromise and potential network infiltration. Attackers can leverage this vulnerability to gain root access to the router, modify network configurations, install persistent backdoors, or use the compromised device as a pivot point for attacking other systems within the local network. The vulnerability aligns with CWE-77 and CWE-94 categories, specifically addressing improper neutralization of special elements used in command execution and improper control of generation of code. From an adversary perspective, this vulnerability maps to ATT&CK technique T1059.001 for command and scripting interpreter and T1021.001 for remote services, enabling attackers to establish persistent access and execute arbitrary code on the target network infrastructure.
Mitigation strategies for CVE-2014-9144 should prioritize immediate firmware updates from Technicolor to address the root cause of the vulnerability, though the affected firmware version 2.05.C29GV may no longer receive official patches. Network segmentation and access controls should be implemented to restrict access to the router's administrative interface, while firewall rules should be configured to block unauthorized access to the router's web management ports. Additional defensive measures include disabling unnecessary services such as the ping functionality if not required, implementing network monitoring to detect suspicious command execution patterns, and conducting regular vulnerability assessments to identify similar injection flaws in other network devices. The vulnerability highlights the importance of input validation and secure coding practices in embedded systems, emphasizing that network infrastructure devices require the same security rigor as traditional applications to prevent command injection attacks that can compromise entire network domains.