CVE-2017-2735 in TIT-AL00
Summary
by MITRE
TIT-AL00 smartphones with software versions earlier before TIT-AL00C583B214 have a exposed system interface vulnerability. The software provides a system interface for interaction with external applications, but calling the interface is not properly restricted. An attacker could trick the user into installing a malicious application to call the interface and modify the system properties.
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Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-2735 affects TIT-AL00 smartphones running software versions prior to TIT-AL00C583B214, representing a critical exposure in the device's system interface design. This flaw resides in the Android-based operating system implementation where a system interface intended for legitimate external application interaction lacks proper access controls and authentication mechanisms. The vulnerability stems from insufficient input validation and authorization checks within the system service layer, allowing unauthorized applications to invoke privileged system functions through the exposed interface.
The technical nature of this vulnerability aligns with CWE-284, which describes improper access control in software systems where security restrictions are not properly enforced. The exposed system interface serves as an attack vector that bypasses normal application sandboxing mechanisms, enabling malicious actors to manipulate core system properties. The flaw operates through a privilege escalation pathway where a seemingly benign application can exploit the interface to gain elevated system privileges, effectively compromising the device's integrity and security posture. The interface likely exposes functionality related to system configuration modification, firmware management, or device settings that should only be accessible through legitimate system processes or authorized administrative interfaces.
From an operational perspective, this vulnerability creates significant risk for end users and enterprise environments where these devices may be deployed. An attacker could exploit this flaw by tricking users into installing a malicious application through social engineering, phishing campaigns, or compromised app stores. Once installed, the malicious application could invoke the exposed interface to modify critical system properties, potentially leading to persistent backdoors, data exfiltration capabilities, or complete device compromise. The impact extends beyond individual user privacy to include potential corporate data breaches, especially in environments where these devices are used for business purposes and may contain sensitive organizational information.
The exploitation of this vulnerability represents a sophisticated attack pattern that leverages the principle of least privilege violation, as described in the MITRE ATT&CK framework under technique T1068 for bypassing system protections. The attack chain typically involves initial access through malicious application installation followed by privilege escalation to system-level operations. Organizations should implement comprehensive mobile device management solutions that can detect and prevent installation of applications from untrusted sources, while also applying the vendor-provided security patches that address the interface restriction issue. Network monitoring should include detection of unusual system interface calls and unauthorized configuration changes that may indicate exploitation attempts. Regular security assessments of mobile device environments are essential to identify and remediate similar exposure vulnerabilities, particularly in legacy systems where security updates may not be automatically deployed.