cbcvebase.
CVE-2020-1069
published 2020-05-21

CVE-2020-1069: A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails to properly identify and filter unsafe ASP.Net web controls, aka…

PriorityP260high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
9.92%
95.1th percentile
A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails to properly identify and filter unsafe ASP.Net web controls, aka 'Microsoft SharePoint Server Remote Code Execution Vulnerability'.

Affected

9 ranges
VendorProductVersion rangeFixed in
microsoftmicrosoft_sharepoint_enterprise_server
microsoftmicrosoft_sharepoint_foundation
microsoftmicrosoft_sharepoint_server
microsoftsharepoint_enterprise_server
microsoftsharepoint_foundation
microsoftsharepoint_server
msrcmicrosoft_sharepoint_enterprise_server_2016
msrcmicrosoft_sharepoint_foundation_2013_service_pack_1
msrcmicrosoft_sharepoint_server_2019

Detection & IOCsextracted from sources · hover to see the quote

  • Exploitation requires an authenticated user to create and invoke a specially crafted page on an affected Microsoft SharePoint Server, targeting unsafe ASP.Net web controls
  • Successful exploitation executes code in the context of the SharePoint application pool process — monitor for anomalous process activity spawned from the SharePoint app pool identity
  • Attack vector is uploading a malicious page to SharePoint — monitor for unusual .aspx or web control file uploads by authenticated users to SharePoint servers
  • ·Vulnerability is in Microsoft SharePoint Server's failure to properly identify and filter unsafe ASP.Net web controls; patching is the primary remediation — no public exploit or active exploitation confirmed at time of disclosure

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
vendor_msrc8.8CRITICAL
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.