ZDI-21-573: Microsoft SharePoint WebPart Interpretation Conflict Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of server-side controls in WebParts. By specifying a control using a non-canonical string, an unsafe server-side control can be instantiated. An attacker can leverage this vulnerability to execute code in the context of the service account.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-21-573?
The severity of ZDI-21-573 is high due to its potential for remote code execution.
How do I fix ZDI-21-573?
To fix ZDI-21-573, apply the latest security patches provided by Microsoft for SharePoint.
What software is affected by ZDI-21-573?
ZDI-21-573 specifically affects Microsoft SharePoint installations.
Does ZDI-21-573 require authentication to be exploited?
Yes, exploitation of ZDI-21-573 requires authentication to access affected SharePoint installations.
What impact does ZDI-21-573 have on SharePoint?
ZDI-21-573 allows remote attackers to execute arbitrary code, potentially compromising SharePoint installations.