Skype for Business and Lync Spoofing Vulnerability

An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access. To exploit this vulnerability, an attacker would need to modify the token. The update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens.

A spoofing vulnerability exists when a Lync Server or Skype for Business Server does not properly sanitize a specially crafted request, aka 'Skype for Business and Lync Spoofing Vulnerability'.

HPE Smart Update in Storage Sizing Tool before 13.0, Converged Infrastructure Solution Sizer Suite (CISSS) before 2.13.1, Power Advisor before 7.8.2, Insight Management Sizer before 16.12.1, Synergy Planning Tool before 3.3, SAP Sizing Tool before 16.12.1, Sizing Tool for SAP Business Suite powered by HANA before 16.11.1, Sizer for ConvergedSystems Virtualization before 16.7.1, Sizer for Microsoft Exchange Server before 16.12.1, Sizer for Microsoft Lync Server 2013 before 16.12.1, Sizer for Microsoft SharePoint 2013 before 16.13.1, Sizer for Microsoft SharePoint 2010 before 16.11.1, and Sizer for Microsoft Skype for Business Server 2015 before 16.5.1 allows remote attackers to execute arbitrary code via unspecified vectors.

Cross-site scripting (XSS) vulnerability in Microsoft Lync Server 2013 and Skype for Business Server 2015 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "Skype for Business Server and Lync Server XSS Elevation of Privilege Vulnerability."

Cross-site scripting (XSS) vulnerability in the jQuery engine in Microsoft Lync Server 2013 and Skype for Business Server 2015 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "Skype for Business Server and Lync Server XSS Information Disclosure Vulnerability."