CVE-2014-10018 in T2-B-Gawv1.4U10Y-BI
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in webconfig/wlan/country.html/country in the Teracom T2-B-Gawv1.4U10Y-BI modem allows remote attackers to inject arbitrary web script or HTML via the essid parameter.
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Analysis
by VulDB Data Team • 09/09/2024
The CVE-2014-10018 vulnerability represents a critical cross-site scripting flaw discovered in the Teracom T2-B-Gawv1.4U10Y-BI wireless modem firmware. This vulnerability resides within the web configuration interface, specifically in the wlan/country.html component that handles wireless network settings. The flaw manifests when the system fails to properly sanitize user input submitted through the essid parameter, which is used to configure the wireless network's service set identifier. This parameter directly influences how the modem's web interface renders wireless network configuration data, creating an exploitable condition that allows malicious actors to inject arbitrary web scripts or HTML content.
The technical exploitation of this vulnerability occurs through a classic XSS attack vector where an attacker crafts malicious input containing script code within the essid parameter. When the vulnerable modem processes this input and displays it in the web interface without proper sanitization or encoding, the injected script executes within the context of the authenticated user's browser session. This creates a persistent threat where attackers can establish malicious sessions, steal session cookies, perform unauthorized actions on behalf of users, or redirect victims to phishing sites. The vulnerability is particularly concerning because it affects the modem's administrative web interface, potentially allowing attackers to gain unauthorized access to network configuration settings and compromise the entire wireless infrastructure.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to escalate privileges and manipulate the modem's configuration. An attacker who successfully exploits this vulnerability can potentially modify wireless network settings, change administrator credentials, disable security features, or establish persistent backdoors within the network infrastructure. This represents a significant risk for enterprise and home users who rely on these modems for network connectivity, as the compromised device becomes a potential entry point for broader network attacks. The vulnerability affects the modem's web configuration interface, which is typically accessible from within the local network, making it particularly dangerous in environments where network segmentation is not properly implemented.
Security professionals should consider this vulnerability in the context of CWE-79, which specifically addresses cross-site scripting flaws in web applications, and aligns with ATT&CK technique T1190 for exploiting vulnerabilities in web applications. Mitigation strategies must include immediate firmware updates from Teracom, proper input validation and output encoding within the web interface, and network segmentation to limit access to the modem's administrative interface. Organizations should also implement web application firewalls to detect and block malicious script injection attempts, conduct regular security assessments of network infrastructure devices, and establish monitoring protocols to detect unauthorized configuration changes. Additionally, users should be educated about the risks of accessing modem interfaces from untrusted networks and the importance of changing default administrative credentials to prevent unauthorized access to the vulnerable web interface.