CVE-2022-33946 in SUR
Summary
by MITRE • 02/16/2023
Improper authentication in the Intel(R) SUR software before version 2.4.8902 may allow an authenticated user to potentially enable escalation of privilege via local access.
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Analysis
by VulDB Data Team • 03/18/2023
The vulnerability identified as CVE-2022-33946 represents a critical authentication flaw within Intel's SUR (Software Update Receiver) software ecosystem. This issue affects versions prior to 2.4.8902 and specifically targets the authentication mechanisms that govern user access and privilege levels. The vulnerability stems from inadequate validation of user credentials and access controls, creating potential pathways for malicious actors who have already established authentication within the system to escalate their privileges. The flaw exists in the software's handling of local access requests and authentication tokens, which undermines the fundamental security model of the platform.
Technical exploitation of this vulnerability occurs when an authenticated user leverages weaknesses in the authentication flow to gain elevated privileges without proper authorization. The underlying issue manifests in the software's insufficient verification processes during privilege escalation attempts, allowing users to bypass normal access controls. This type of vulnerability aligns with CWE-287, which addresses improper authentication issues in software systems. The vulnerability's local access requirement means that exploitation typically occurs from within the system boundaries, though the implications extend beyond simple local privilege escalation to potentially compromise entire system integrity. Attackers can exploit this weakness to elevate their privileges from standard user level to administrative or root access, depending on the system architecture.
The operational impact of CVE-2022-33946 extends significantly beyond the immediate privilege escalation capabilities. Organizations utilizing affected Intel SUR software versions face potential system compromise, data breaches, and unauthorized access to sensitive information. The vulnerability creates a persistent threat vector that can be exploited by both internal and external threat actors who have already gained initial access to the system. This flaw particularly affects enterprise environments where the SUR software is deployed for firmware updates and system management, as it can enable attackers to manipulate critical system components and potentially establish persistent backdoors. The vulnerability's classification under ATT&CK technique T1068, which covers 'Exploitation for Privilege Escalation,' underscores its potential for enabling broader attack chains and lateral movement within compromised networks.
Mitigation strategies for this vulnerability primarily focus on immediate software updates and patches provided by Intel to address the authentication flaws in affected versions. Organizations should prioritize updating all instances of the SUR software to version 2.4.8902 or later, ensuring that the updated software properly validates authentication credentials and implements robust access control mechanisms. Additionally, implementing network segmentation and access control policies can help limit the potential impact of exploitation attempts, while monitoring for unusual privilege escalation activities should be enabled to detect potential exploitation attempts. Security administrators should also conduct comprehensive vulnerability assessments to identify all systems running affected software versions and establish automated patch management processes to prevent future occurrences of similar authentication flaws. The vulnerability demonstrates the critical importance of maintaining up-to-date security software and proper authentication controls in enterprise environments, as it can serve as a gateway for more extensive compromise of system resources and data assets.