{"uuid": "87be7c2c-efc8-499f-8c20-f0abe51392c3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2020-16952", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/sharepoint_ssi_viewstate.rb", "content": "{\"aliases\": [], \"arch\": \"cmd, x86, x64\", \"author\": [\"mr_me\", \"wvu \"], \"autofilter_ports\": [80, 8080, 443, 8000, 8888, 8880, 8008, 3000, 8443], \"autofilter_services\": [\"http\", \"https\"], \"check\": true, \"default_credential\": false, \"description\": \"This module exploits a server-side include (SSI) in SharePoint to leak\\n          the web.config file and forge a malicious ViewState with the extracted\\n          validation key.\\n\\n          This exploit is authenticated and requires a user with page creation\\n          privileges, which is a standard permission in SharePoint.\\n\\n          The web.config file will be stored in loot once retrieved, and the\\n          VALIDATION_KEY option can be set to short-circuit the SSI and trigger\\n          the ViewState deserialization.\\n\\n          Tested against SharePoint 2019 on Windows Server 2016.\", \"disclosure_date\": \"2020-10-13\", \"fullname\": \"exploit/windows/http/sharepoint_ssi_viewstate\", \"is_install_path\": true, \"mod_time\": \"2025-12-17 16:12:31 +0000\", \"name\": \"Microsoft SharePoint Server-Side Include and ViewState RCE\", \"needs_cleanup\": null, \"notes\": {\"Reliability\": [\"unreliable-session\"], \"SideEffects\": [\"ioc-in-logs\", \"config-changes\", \"artifacts-on-disk\"], \"Stability\": [\"crash-safe\"]}, \"path\": \"/modules/exploits/windows/http/sharepoint_ssi_viewstate.rb\", \"platform\": \"Windows\", \"post_auth\": true, \"rank\": 600, \"ref_name\": \"windows/http/sharepoint_ssi_viewstate\", \"references\": [\"CVE-2020-16952\", \"URL-https://srcincite.io/advisories/src-2020-0022/\", \"URL-https://srcincite.io/pocs/cve-2020-16952.py.txt\", \"URL-https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16952\"], \"rport\": 80, \"session_types\": false, \"targets\": [\"Windows Command\", \"Windows Dropper\", \"PowerShell Stager\"], \"type\": \"exploit\"}", "creation_timestamp": "2026-09-08T06:51:58.657687Z"}