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.
OS-WINDOWS Microsoft Windows Remote Desktop Protocol remote code execution attempt
This rule looks for specially crafted RDP packets from a malicious RDP server which could exploit a use-after-free vulnerability on a vulnerable RDP client.
This rule alerts use-after-free exploit targeting Remote Desktop functionality in Windows is detected.
No public information
No known false positives
Cisco Talos Intelligence Group
No rule groups
Use After Free
Use After Free (UAF) attacks target computer memory flaws to corrupt the memory execute code. The name refers to attempts to use memory after it has been freed, which can cause a program to crash under normal circumstances, or result in remote code execution in a successful attack.
CVE-2021-43233 |
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Tactic: Initial Access
Technique: External Remote Services
For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org