SRC-2021-0019 : Microsoft SharePoint Server ProfilePropertyLoader Information Disclosure Vulnerability

CVE ID: CVE-2021-31965

CVSS Score: 5.7, (/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)

Affected Vendors: Microsoft

Affected Products: SharePoint Server

Vulnerability Details: This vulnerability allows remote attackers to disclose information on affected installations of Microsoft SharePoint Server. Authentication and user interaction is required to exploit this vulnerability. The specific flaw exists within the ProfilePropertyLoader control. The issue results from the lack of proper restriction of this control which can access user profile data. An attacker can leverage this vulnerability to disclose personal identifiable information of a target user.

Vendor Response:

Microsoft has issued an update to correct this vulnerability. More details can be found at: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-31965

Disclosure Timeline:

• 2020-11-18 – Sent to Microsoft

• 2021-06-04 – Coordinated public release of advisory

Credit: This vulnerability was discovered by Steven Seeley (mr_me) of Qihoo 360 Vulcan Team