CVE-2022-28126 in XMM 7560
Summary
by MITRE • 11/11/2022
Improper input validation in some Intel(R) XMM(TM) 7560 Modem software before version M2_7560_R_01.2146.00 may allow a privileged user to potentially enable escalation of privilege via local access.
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Analysis
by VulDB Data Team • 02/06/2025
The vulnerability identified as CVE-2022-28126 represents a critical security flaw within Intel's XMM 7560 modem software ecosystem, specifically affecting versions prior to M2_7560_R_01. This issue manifests as improper input validation within the modem's software implementation, creating a pathway for privilege escalation that could be exploited by malicious actors with local access to affected systems. The vulnerability resides in the modem software's handling of user inputs, which fails to properly validate or sanitize data before processing, potentially allowing crafted inputs to manipulate the software's behavior in unintended ways.
The technical nature of this vulnerability falls under CWE-20, which describes "Improper Input Validation" as a fundamental weakness in software design where input data is not properly validated before being processed. The flaw specifically impacts the modem's privilege management mechanisms, where a privileged user with local access can exploit the insufficient validation to elevate their privileges within the system. This represents a local privilege escalation vulnerability that operates at the kernel or system level, where the modem software's trust model is compromised by inadequate input sanitization. The vulnerability's impact is particularly concerning because it requires only local access and privileged user status, making it exploitable in scenarios where an attacker has already gained some level of system access.
From an operational standpoint, this vulnerability creates significant risk for organizations relying on Intel XMM 7560 modems, particularly in environments where local privilege escalation could lead to complete system compromise. The attack surface includes any system running vulnerable modem software, especially those with mobile broadband connectivity or embedded systems utilizing this modem technology. The vulnerability's exploitation potential aligns with ATT&CK technique T1068, which covers "Local Port Privilege Escalation," and T1548.001, covering "Abuse Elevation Control Mechanism: Setuid and Setgid." Systems that depend on modem functionality for network connectivity, such as IoT devices, industrial control systems, or mobile computing platforms, face heightened risk from this flaw.
Mitigation strategies for CVE-2022-28126 primarily involve immediate software updates to version M2_7560_R_01 or later, which contain the necessary input validation fixes. Organizations should conduct comprehensive inventory assessments to identify all systems running vulnerable modem software and prioritize patching efforts accordingly. Network segmentation and access controls should be implemented to limit local access to affected systems, while monitoring solutions should be deployed to detect anomalous privilege escalation activities. Additionally, system hardening measures including disabling unnecessary modem services, implementing least privilege principles for modem software components, and regular security assessments of embedded systems can help reduce the overall attack surface and mitigate potential exploitation attempts.