CVE-2024-1096 in Twister Antivirus
Summary
by MITRE • 02/13/2024
Twister Antivirus v8.17 allows Elevation of Privileges on the computer where it's installed by triggering the 0x80112067, 0x801120CB and 0x801120CC IOCTL codes of the fildds.sys driver.
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Analysis
by VulDB Data Team • 02/13/2024
The vulnerability identified as CVE-2024-1096 represents a critical privilege escalation flaw within Twister Antivirus version 8.17, specifically targeting the underlying fildds.sys kernel driver component. This issue arises from improper input validation and insufficient privilege checks within the driver's implementation of three distinct IOCTL codes 0x80112067, 0x801120CB, and 0x801120CC. The affected driver operates at kernel level, making it a prime target for attackers seeking to elevate their privileges from standard user context to system-level access. The vulnerability stems from the driver's failure to properly validate user-supplied parameters before executing sensitive operations, creating an attack surface where malicious input can manipulate kernel behavior.
The technical exploitation of this vulnerability involves crafting specific IOCTL requests that leverage the three identified code sequences to manipulate kernel memory structures and bypass security mechanisms. These IOCTL codes likely represent legitimate driver interfaces that have been improperly secured, allowing unprivileged users to invoke privileged operations through crafted input parameters. The flaw aligns with CWE-264, which addresses permissions, privileges, and access controls in kernel-mode drivers, and represents a classic case of insufficient privilege checking in kernel-level components. The attack vector requires local system access but does not necessitate network connectivity, making it particularly dangerous in environments where users may have elevated privileges through legitimate means.
The operational impact of this privilege escalation vulnerability is severe and multifaceted, potentially allowing attackers to execute arbitrary code with system-level privileges, modify critical system files, disable security features, and establish persistent backdoors. Once elevated, an attacker could compromise the entire system, access sensitive data, and potentially move laterally within network environments. The vulnerability affects the integrity and confidentiality of the affected system, as it enables unauthorized modification of system components and access to protected resources. According to ATT&CK framework, this vulnerability maps to T1068 (Exploitation for Privilege Escalation) and T1543 (Create or Modify System Process) categories, representing the exploitation of legitimate system processes to gain elevated access.
Mitigation strategies for CVE-2024-1096 should include immediate patching of the Twister Antivirus software to the latest version that addresses the privilege escalation flaw. System administrators should implement strict access controls and monitor for unusual kernel-level activity that might indicate exploitation attempts. The principle of least privilege should be enforced by ensuring that only authorized personnel have access to systems running vulnerable antivirus software. Additionally, endpoint detection and response solutions should be configured to monitor for suspicious IOCTL activity patterns that correlate with the affected codes. Organizations should also consider implementing kernel-mode driver signature enforcement and disabling unnecessary driver interfaces to reduce the attack surface. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other security software components that might present analogous privilege escalation risks.