CVE-2014-3150 in Livebox
Summary
by MITRE
Livebox 1.1 allows remote authenticated users to upload arbitrary configuration files, download the configuration file, or obtain sensitive information via crafted Javascript.
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Analysis
by VulDB Data Team • 12/06/2019
The vulnerability identified as CVE-2014-3150 affects Livebox version 1.1 and represents a critical security flaw that enables remote authenticated attackers to manipulate system configuration files through malicious javascript code. This issue stems from inadequate input validation and access control mechanisms within the web interface of the Livebox device, creating a pathway for attackers who have already established authentication credentials to escalate their privileges and access sensitive system information. The vulnerability specifically targets the configuration management functionality of the device, allowing unauthorized manipulation of system settings that could compromise network security and device integrity.
The technical implementation of this vulnerability involves the exploitation of javascript execution capabilities within the Livebox web interface. When authenticated users interact with the device's web management portal, malicious javascript code can be injected that bypasses normal access controls and validation procedures. This allows attackers to upload arbitrary configuration files that may contain malicious payloads or unauthorized system modifications. The flaw operates through improper sanitization of user inputs and insufficient authorization checks during file upload and download operations, creating a direct pathway for information disclosure and configuration manipulation. The vulnerability is classified under CWE-22 as "Improper Limitation of a Pathname to a Restricted Directory" and CWE-79 as "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", highlighting both path traversal and cross-site scripting weaknesses in the implementation.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with the capability to download and modify the device's configuration files, potentially allowing for complete system compromise. An attacker could exploit this vulnerability to obtain sensitive information such as administrative credentials, network configuration details, or other system parameters that could be used for further attacks within the network. The ability to upload arbitrary configuration files means that malicious actors could introduce backdoors, modify network settings, or disable security features, effectively compromising the entire network infrastructure that relies on the compromised Livebox device as a gateway. This vulnerability represents a significant risk to network security as it allows for persistent access and control over the device, potentially enabling lateral movement within the network and establishing a foothold for more extensive attacks.
Mitigation strategies for CVE-2014-3150 should focus on implementing robust input validation and access control mechanisms within the Livebox web interface. Network administrators should ensure that all Livebox devices are updated to the latest firmware versions that address this vulnerability, as the manufacturer likely released patches to correct the javascript injection and configuration file handling issues. The implementation of proper input sanitization and output encoding techniques would prevent malicious javascript from being executed within the context of the web application. Additionally, network segmentation and access control measures should be implemented to limit the potential impact of such vulnerabilities, including restricting access to the Livebox management interface to authorized personnel only and implementing network monitoring to detect unusual configuration file access patterns. The vulnerability also underscores the importance of following secure coding practices and conducting regular security assessments of network infrastructure devices to identify and remediate similar issues before they can be exploited by malicious actors. Organizations should consider implementing the ATT&CK framework's techniques related to privilege escalation and credential access to better understand and defend against such vulnerabilities in their network environments.