Rule Category

SERVER-WEBAPP -- Snort has detected traffic exploiting vulnerabilities in web based applications on servers.

Alert Message

SERVER-WEBAPP Microsoft SharePoint elevation of privilege attempt

Rule Explanation

This rule looks for attempts to abuse ToolPane requests via WebPart additions to execute code remotely on a SharePoint system, enabling privilege escalation or in other cases further system compromise.

What To Look For

This rule alerts on attempts to exploit a URI pathing authentication bypass in Microsoft SharePoint.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

No rule groups

CVE

Additional Links

Rule Vulnerability

Insecure Deserialization

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

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2026-56164
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