OS-WINDOWS -- Snort has detected traffic targeting vulnerabilities in a Windows-based operating system. This does not include browser traffic or other software on the OS, but attacks against the OS itself. (such as?)
OS-WINDOWS Microsoft Windows CLFS kernel driver buffer overflow attempt
This rule detects an attempted buffer overflow attack against vulnerable versions of Microsoft Windows CLFS kernel driver by looking for specific data used to exploit the vulnerability.
What To Look For
This rule detects an attempted buffer overflow attack against vulnerable versions of Microsoft Windows CLFS kernel driver.
No public information
No known false positives
Cisco Talos Intelligence Group
MITRE ATT&CK Framework
Tactic: Initial Access
Technique: Spearphishing Attachment
For reference, see the MITRE ATT&CK vulnerability types here:
Buffer Overflows occur when a memory location is filled past its expected boundaries. Computer attackers target systems without proper terminating conditions on buffers, which then write the additional information in other locations in memory, overwriting what is there. This could corrupt the data, making the system behave erratically or crash. The new information could include malicious executable code, which might be executed.
CVE Additional Information