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Microsoft SharePoint Enterprise Server 2016 Multiple Vulnerabilities (KB4475520)

  • Severity Level:
    High Severity
  • CVSS Base Vector:

  • Summary:
    This host is missing an important security update according to Microsoft KB4475520

  • Detection Method:
    Checks if a vulnerable version is present on the target host.

  • Technical Details:
    Multiple flaws exists due to, - An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML tokens with arbitrary symmetric keys. - A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server.

  • Impact:
    Successful exploitation will allow an attacker to perform cross-site scripting attacks on affected systems and run script in the security context of the current user and read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user.

  • Affected Versions:
    Microsoft SharePoint Enterprise Server 2016

  • Recommendations:
    The vendor has released updates. Please see the references for more information.

  • Solution Type:
    Vendor Patch

  • Detection Type:

  • CVSS Score:
  • Family:
    Windows : Microsoft Bulletins
  • Creation Time:
    2019-07-10 07:57:24
  • Modification Time:
    2019-07-10 14:00:44
  • BID:
    109028, 108978
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