Platform
windows
Component
iobit-malware-fighter
Fixed in
4.3.2
CVE-2016-20059 describes a privilege escalation vulnerability found in IObit Malware Fighter versions 4.3.1. This flaw stems from an unquoted service path within the IMFservice and LiveUpdateSvc services, enabling local attackers to gain elevated privileges. Successful exploitation allows attackers to execute malicious code with LocalSystem privileges, potentially compromising the entire system. A fix is available from IObit.
The primary impact of CVE-2016-20059 is the potential for local privilege escalation. An attacker who can execute code on the affected system can leverage this vulnerability to gain LocalSystem privileges, effectively gaining complete control over the machine. This allows them to install malware, steal sensitive data, modify system configurations, and potentially pivot to other systems on the network. The unquoted service path allows an attacker to place a malicious executable in a location that will be executed with elevated privileges when the service restarts or the system reboots. This is a classic attack vector, and while not as widespread as some recent vulnerabilities, it can be highly effective in targeted attacks.
CVE-2016-20059 is not currently listed on the CISA KEV catalog. Public proof-of-concept (PoC) exploits for this vulnerability are known to exist, increasing the risk of exploitation. While active campaigns targeting this specific vulnerability are not widely reported, the ease of exploitation makes it a potential target for opportunistic attackers. The vulnerability's reliance on local access limits its immediate impact on remote systems, but it can be a stepping stone for further attacks.
Exploit Status
EPSS
0.01% (2% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2016-20059 is to upgrade IObit Malware Fighter to a patched version. IObit has released updates to address this vulnerability; consult their official advisory for the latest version. If immediate patching is not possible, a temporary workaround involves manually inspecting and restricting access to the service paths of the IMFservice and LiveUpdateSvc services. Ensure that only trusted executables reside in these paths. Consider implementing stricter access controls on the system to limit the potential for local attackers to exploit this vulnerability. After upgrading, confirm the fix by attempting to trigger the vulnerable service and verifying that the malicious code is not executed.
Update IObit Malware Fighter to a patched version. The vulnerability is due to an unquoted service path, so the update should resolve the issue by correcting how service paths are handled.
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CVE-2016-20059 is a vulnerability in IObit Malware Fighter 4.3.1 that allows local attackers to escalate privileges due to an unquoted service path, potentially granting them full control over the system.
If you are running IObit Malware Fighter version 4.3.1, you are potentially affected by this vulnerability. Upgrade to a patched version as soon as possible.
The recommended fix is to upgrade to a patched version of IObit Malware Fighter. Consult the official IObit advisory for the latest version.
While widespread active exploitation is not widely reported, public PoCs exist, making it a potential target for opportunistic attackers.
Refer to the IObit website or security advisories for the latest information and updates regarding CVE-2016-20059.
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