Advisory Details

September 10th, 2024

Microsoft SharePoint SPAutoSerializingObject Deserialization of Untrusted Data Denial-of-Service Vulnerability

ZDI-24-1206
ZDI-CAN-24482

CVE ID CVE-2024-43466
CVSS SCORE 6.5, AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS SharePoint
VULNERABILITY DETAILS

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Microsoft SharePoint. Authentication is required to exploit this vulnerability.

The specific flaw exists within the SPAutoSerializingObject class. 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 create a denial-of-service condition on the system.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43466
DISCLOSURE TIMELINE
  • 2024-06-26 - Vulnerability reported to vendor
  • 2024-09-10 - Coordinated public release of advisory
  • 2024-09-10 - Advisory Updated
CREDIT Piotr Bazydlo (@chudypb) of Trend Micro Zero Day Initiative
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