Advisory Details

December 4th, 2020

Microsoft SharePoint DataFormWebPart Server-Side Include Information Disclosure Vulnerability

ZDI-20-1398
ZDI-CAN-11267

CVE ID CVE-2020-0971
CVSS SCORE 6.5, (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS SharePoint
VULNERABILITY DETAILS

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Microsoft SharePoint Server. Authentication is required to exploit this vulnerability.

The specific flaw exists within the handling of web parts of type DataFormWebPart. By specifying a custom DataFormWebPart, an attacker can cause the server to process arbitrary server-side includes. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2020-0971
DISCLOSURE TIMELINE
  • 2020-07-02 - Vulnerability reported to vendor
  • 2020-12-04 - Coordinated public release of advisory
CREDIT Anonymous
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