CVE-2016-10315 in Air:Link 3G
Summary
by MITRE
Jensen of Scandinavia AS Air:Link 3G (AL3G) version 2.23m (Rev. 3), Air:Link 5000AC (AL5000AC) version 1.13, and Air:Link 59300 (AL59300) version 1.04 (Rev. 4) devices allow remote attackers to conduct Open Redirect attacks via the submit-url parameter to certain /goform/* pages.
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Analysis
by VulDB Data Team • 08/25/2020
The vulnerability identified as CVE-2016-10315 affects several networking devices manufactured by Jensen of Scandinavia AS, specifically the Air:Link 3G AL3G series, Air:Link 5000AC, and Air:Link 59300 models. These devices operate as wireless communication modules that facilitate internet connectivity for various applications, including industrial monitoring and control systems. The affected firmware versions contain a critical security flaw in their web-based management interfaces that enables unauthorized remote exploitation through a well-known attack vector.
The technical flaw manifests as an insufficient input validation mechanism within the web application's form handling functionality. When users submit data through specific management pages identified by the /goform/* path structure, the system fails to properly validate or sanitize the submit-url parameter. This parameter is designed to redirect users after form submission, but the vulnerability allows attackers to inject arbitrary URLs that will be processed without adequate security checks. The flaw directly maps to CWE-601, which describes open redirect vulnerabilities where applications redirect users to unvalidated external URLs, potentially leading to phishing attacks or malicious payload delivery.
The operational impact of this vulnerability extends beyond simple redirection attacks, as it can be leveraged to create sophisticated social engineering campaigns. Attackers can craft malicious URLs that appear legitimate within the device management interface, potentially tricking administrators into visiting compromised sites that could install malware, steal credentials, or perform additional attacks against the network. The vulnerability affects devices that are commonly deployed in critical infrastructure environments where unauthorized access could lead to significant operational disruptions or security breaches. According to ATT&CK framework, this vulnerability aligns with T1566, which covers phishing techniques, and T1071, which addresses application layer protocols, as the attack exploits weaknesses in web application protocols.
Mitigation strategies for this vulnerability should prioritize immediate firmware updates from the vendor, as Jensen of Scandinavia AS would have released patches addressing the input validation issues. Network segmentation and access controls should be implemented to limit exposure of these management interfaces to trusted networks only, while monitoring systems should be deployed to detect unusual redirection patterns or unauthorized access attempts. Security teams should also conduct comprehensive network assessments to identify all affected devices and ensure proper firewall rules are in place to restrict access to the vulnerable web management interfaces. Additionally, administrators should implement multi-factor authentication for device management access and regularly audit access logs for any suspicious activities that might indicate exploitation attempts.