SERVER-OTHER -- Snort has detected traffic exploiting vulnerabilities in a server in the network.
SERVER-OTHER Microsoft Windows DNS server remote code execution attempt
The rule verifies that packet is DNS response and checks for injected Answers.
What To Look For
If a malicious actor can intercept DNS queries going from local DNS server to Root DNS server, it can inject Answers in response from the Root DNS server that can lead to remote code execution on local DN server. The rule detect the modified response.
No public information
No known false positives
Cisco Talos Intelligence Group
MITRE ATT&CK Framework
Tactic: Initial Access
Technique: Exploit Public-Facing Application
For reference, see the MITRE ATT&CK vulnerability types here:
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 Additional Information