CVE-2022-26079 in XMM 7560
Summary
by MITRE • 11/11/2022
Improper conditions check 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 • 02/05/2025
The vulnerability identified as CVE-2022-26079 represents a critical privilege escalation flaw within Intel XMM 7560 modem software components. This issue affects versions prior to M2_7560_R_01 and stems from improper condition checks that fail to adequately validate user permissions during critical system operations. The vulnerability specifically targets the modem software stack that manages cellular connectivity and related communications functions within affected devices.
The technical implementation flaw manifests in insufficient validation mechanisms that should have prevented unauthorized privilege elevation. When a privileged user accesses certain modem management functions, the software fails to properly verify whether the user possesses adequate permissions for the requested operations. This condition check failure creates an exploitable path where legitimate administrative users could potentially manipulate system states to gain elevated privileges beyond their intended access levels. The vulnerability operates at the kernel or system-level software components that handle modem communication protocols and access controls.
From an operational perspective, this vulnerability presents significant security implications for devices utilizing Intel XMM 7560 modems, particularly those in enterprise or industrial environments where modem functionality is critical for network connectivity. The local access requirement means that an attacker must already have some level of system presence or user credentials to exploit the vulnerability, but once exploited, the privilege escalation could enable full system compromise. This type of vulnerability directly impacts the principle of least privilege and can lead to complete system takeover if not properly addressed.
The vulnerability aligns with CWE-284, which addresses improper access control mechanisms, and represents a classic example of insufficient privilege checking in system software. From an attack framework perspective, this flaw maps to ATT&CK technique T1068, which covers 'Local Privilege Escalation' and specifically targets the exploitation of software vulnerabilities to gain elevated system permissions. Organizations should prioritize patch management for this vulnerability, ensuring all affected Intel XMM 7560 modem software components are updated to version M2_7560_R_01 or later. Additionally, system administrators should implement monitoring for unauthorized access attempts to modem management interfaces and consider network segmentation to limit potential exploitation vectors. The remediation process should include comprehensive testing of the updated firmware to ensure no regression in modem functionality while addressing the privilege escalation vulnerability.