Possible Out of Bounds Write Vulnerability in WLAN Service Could Lead to Local Escalation of Privilege
CVE-2024-20017
Key Information:
- Vendor
- MediaTek
- Vendor
- CVE Published:
- 4 March 2024
Badges
What is CVE-2024-20017?
CVE-2024-20017 is a vulnerability identified in the wireless LAN (WLAN) service component developed by Mediatek, Inc. This flaw stems from improper input validation, resulting in a possible out-of-bounds write situation. Exploitation of this vulnerability could allow attackers to achieve local escalation of privileges without the need for additional execution rights or user interaction, thereby enabling unauthorized access to sensitive system functions and data. The implications for organizations relying on Mediatek's WLAN service can be severe, including potential compromise of system integrity and confidentiality.
Technical Details
The vulnerability arises from a failure in the input validation process within the WLAN service, creating an avenue for out-of-bounds write operations. Attackers can exploit this flaw to overwrite memory, potentially leading to unexpected behavior in the affected system. The issue has been assigned the Patch ID WCNCR00350938 and is linked to Issue ID MSV-1132, indicating that it has been tracked and acknowledged by the vendor. Importantly, the vulnerability does not require user interaction for exploitation, which increases its risk profile as it could be initiated remotely by an attacker.
Impact of the Vulnerability
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Local Escalation of Privilege: The most significant impact is the potential for local escalation of privileges, which can grant attackers higher access levels within an affected system, enabling them to execute malicious commands or gain broader control.
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Unauthorized Access: By exploiting this vulnerability, threat actors may gain unauthorized access to sensitive data or system settings, leading to data breaches or manipulation of critical system functionalities.
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System Compromise: The ability to execute arbitrary code remotely can result in overall system compromise, potentially allowing attackers to install malware, disrupt services, and further infiltrate organizational networks.
Affected Version(s)
MT6890, MT7915, MT7916, MT7981, MT7986 SDK version 7.4.0.1 and before (for MT7915) / SDK version 7.6.7.0 and before (for MT7916, MT7981 and MT7986) / OpenWrt 19.07, 21.02
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
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