Description: A DLL hijack vulnerability was reported in Lenovo Lock Screen that could allow a local attacker to execute code with elevated privileges.
CVE-2024-4132
CVSS Score: 7.8 (HIGH)
EPSS Score: N/A
Risk Score: N/A
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
Mitre ATT&CK Technical v15.1
T1053.002 – At
Technical Analysis & Mitigation Measures
1. Technical Attack Analysis:
– The DLL hijack vulnerability in Lenovo Lock Screen allows attackers to place a malicious DLL in a directory that is searched before the legitimate DLL, leading to code execution with elevated privileges.
– Exploitation of this vulnerability can result in unauthorized access to sensitive information, modification of system configurations, installation of additional malware, and potential full system compromise.
– Attackers can leverage this technique to gain persistence on the system or to escalate privileges for further attacks.
– The attack could be executed locally, requiring physical access or the ability to run code on the affected system, increasing the risk in shared or multi-user environments.
2. Mitigation Measures:
– Regularly update Lenovo Lock Screen and other software to the latest versions.
– Implement application whitelisting to control which applications can execute.
– Monitor and audit file system changes to detect unauthorized DLLs.
– Restrict user permissions to limit the ability to place DLLs in sensitive directories.
– Educate users about the risks of running untrusted applications.
– Use anti-malware solutions to detect and prevent malicious code execution.
– Employ a robust logging mechanism to track activities related to DLL loading.
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