Advisory Details

February 12th, 2019

Microsoft SharePoint BDC Import Deserialization of Untrusted Data Remote Code Execution Vulnerability

ZDI-19-180
ZDI-CAN-7261

CVE ID CVE-2019-0594
CVSS SCORE 7.2, (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS SharePoint
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft SharePoint. Authentication is required to exploit this vulnerability.

The specific flaw exists within the Business Data Connectivity Service Application. 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 Administrator.

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-2019-0594
DISCLOSURE TIMELINE
  • 2018-09-23 - Vulnerability reported to vendor
  • 2019-02-12 - Coordinated public release of advisory
CREDIT Markus Wulftange (@mwulftange)
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