ZDI-21-1224: Microsoft SharePoint Workflow Deserialization of Untrusted Data 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 custom workflows. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the web service account.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft SharePoint |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Microsoft SharePoint vulnerability?
The vulnerability ID for this Microsoft SharePoint vulnerability is ZDI-21-1224.
What is the title of this vulnerability?
The title of this vulnerability is 'Microsoft SharePoint Workflow Deserialization of Untrusted Data Remote Code Execution Vulnerability'.
What is the severity of ZDI-21-1224 vulnerability?
The severity of ZDI-21-1224 vulnerability is high with a severity value of 8.8.
How does this vulnerability affect Microsoft SharePoint installations?
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft SharePoint.
What is the required authentication to exploit this vulnerability?
Authentication is required to exploit this vulnerability.
- agent/description
- agent/event
- agent/references
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/title
- agent/type
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-1224
- alias/ZDI-CAN-14769
- alias/CVE-2021-41344
- agent/software-canonical-lookup
- vendor/microsoft
- canonical/microsoft sharepoint