Out of Bounds Write Vulnerability in MediaTek Modem

CVE-2024-20154

What is CVE-2024-20154?

CVE-2024-20154 is a significant vulnerability affecting MediaTek Modem technology, which is widely used to facilitate mobile communications. This vulnerability arises from an out-of-bounds write issue due to a lack of adequate bounds checking. If exploited, it could allow malicious actors to execute remote code on affected devices connected to rogue base stations, presenting a serious security risk without requiring any user interaction. As a result, organizations relying on MediaTek Modems could face unauthorized control over their devices, leading to various adverse effects, including data loss and compromised system integrity.

Technical Details

The vulnerability involves a failure in the MediaTek Modem's code safety checks, enabling potential out-of-bounds writes. This oversight allows attackers who control a malicious base station to execute arbitrary code on connected user equipment (UE) without needing specific execution privileges or user intervention. The issues are identified under Patch ID: MOLY00720348 and Issue ID: MSV-2392, and pose critical challenges for mobile security.

Potential Impact of CVE-2024-20154

1. Remote Code Execution: Attackers can leverage this vulnerability to take control of devices remotely, potentially allowing them to manipulate device functions or harvest sensitive data.

2. Unauthorized Access to Network Resources: By exploiting this flaw, malicious actors might gain unauthorized access to networks, leading to additional breaches or information theft across connected systems.

3. Increased Attack Surface for Further Exploits: Successful exploitation could allow attackers to deploy additional malware or pivot to other systems within an organization, increasing the risk of broader cyber incidents.

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