Security Bulletin: Microsoft Patches Critical Zero-Day Vulnerability Used in Ransomware Attacks
Security Researchers have confirmed that CVE-2023-28252 has enabled the deployment of the Nokoyawa ransomware, which poses a significant threat to small and medium-sized businesses running Windows servers.
On April’s Patch Tuesday, Microsoft announced it had patched a zero-day vulnerability (CVE-2023-28252) impacting all supported versions of Windows that have been exploited by cybercriminals to launch ransomware attacks. This privilege escalation vulnerability in the Windows Common Log File System (CLFS) allows cybercriminals to gain full access to an unpatched system upon successful exploitation. Security Researchers have confirmed that CVE-2023-28252 has enabled the deployment of the Nokoyawa ransomware, which poses a significant threat to small and medium-sized businesses running Windows servers.
With this year’s uptick in ransomware attacks, it is vital that organizations keep their systems updated to reduce the ability of cybercriminals to leverage zero-day vulnerabilities to launch crippling cyberattacks.
Why is this important?
The zero-day vulnerability in the Windows Common Log File System (CLFS) is extremely concerning because hackers can gain full access to an unpatched system, allowing them to launch ransomware attacks. With this year’s uptick in ransomware attacks, it is vital that organizations keep their systems updated to reduce the ability of cybercriminals to leverage zero-day vulnerabilities to launch crippling cyberattacks.
What do you need to do?
If you are using a Windows system, it is crucial to update your systems as soon as possible. The US cybersecurity agency CISA has added the newly patched Windows vulnerability to its catalog of known exploited vulnerabilities and urged federal agencies to update their systems.
...pay close attention to Microsoft's Patch Tuesday updates...These updates include critical security patches that address known vulnerabilities, such as the zero-day vulnerability in the Windows Common Log File System (CLFS).
Additional Recommendations
It is important for organizations to pay close attention to Microsoft's Patch Tuesday updates, which are released on the second Tuesday of every month. These updates include critical security patches that address known vulnerabilities, such as the zero-day vulnerability in the Windows Common Log File System (CLFS).
By regularly applying these updates, organizations can ensure that their systems are protected from the latest cyber threats.
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Disclaimer
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