SERVER-WEBAPP -- Snort has detected traffic exploiting vulnerabilities in web based applications on servers.
SERVER-WEBAPP Microsoft SharePoint EntityInstanceIdEncoder remote code execution attempt
This event is generated when an attacker attempts to exploit a remote code execution vulnerability in Microsoft SharePoint.
Attempted User Privilege Gain
This rule checks for attempts to exploit a remote code execution vulnerability in Microsoft SharePoint.
Ease of Attack:
What To Look For
This rule looks for a crafted request to a Microsoft SharePoint server in an attempt to trigger a remote code execution vulnerability.
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:
Insecure Deserialization relates to web application security. Applications turn an object into data through serialization; the reverse of that process, deserialization, can be vulnerable to attacks when the application trusts the data that is being deserialized. Serialized data is machine readable and not encrypted; serialized user-supplied data should not be trusted. Deserialization attacks can lead to remote code execution.
CVE Additional Information
CVE-2019-0604A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package, aka 'Microsoft SharePoint Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-0594.
||Ease of Access||LOW