Microsoft SharePoint Server Elevation of Privilege Vulnerability
CVE-2018-8635 is fixed in 3 products on 1 platform, first by KB4461558, released December 11, 2018. It is not reported as exploited. Patch Radar priority: High.
<p>An elevation of privilege vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted authentication request to an affected SharePoint server. An attacker who successfully exploited this vulnerability could execute malicious code on a vulnerable server in the context of the SharePoint application pool account.</p> <p>To exploit this vulnerability, an authenticated attacker would need to create a page specifically designed to cause a server-side request. The attacker would then send a specially-crafted message to perform a server-side request forgery attack.</p> <p>The update addresses the vulnerability by modifying how Microsoft SharePoint Server manages server authentication.</p>