Microsoft Office Elevation of Privilege 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.

Skype for Business and Lync Remote Code Execution Vulnerability

Skype for Business and Lync Remote Code Execution Vulnerability

Skype for Business and Lync Server Denial of Service Vulnerability

A denial of service vulnerability exists in Skype for Business. An attacker who successfully exploited the vulnerability could cause Skype for Business to stop responding. Note that the denial of service would not allow an attacker to execute code or to elevate the attacker's user rights. To exploit the vulnerability, an attacker needs to obtain a dial-in link for a vulnerable server and then initiates a series of calls within a short amount of time. The update addresses the vulnerability by correcting the way that Skype for Business server handles objects in memory.

Cross-site scripting (XSS) vulnerability in the Web Components Server in Microsoft Lync Server 2013 allows remote attackers to inject arbitrary web script or HTML via a crafted URL, aka "Lync XSS Information Disclosure Vulnerability."

The Server in Microsoft Lync Server 2013 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon hang) via a crafted request, aka "Lync Denial of Service 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."

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

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."

The Response Group Service in Microsoft Lync Server 2010 and 2013 and the Core Components in Lync Server 2013 do not properly handle exceptions, which allows remote attackers to cause a denial of service (daemon hang) via a crafted call, aka "Lync Denial of Service Vulnerability."

Cross-site scripting (XSS) vulnerability in the Web Components Server in Microsoft Lync Server 2010 and 2013 allows remote attackers to inject arbitrary web script or HTML via a crafted URL containing a valid meeting ID, aka "Lync Server Content Sanitization Vulnerability."

Microsoft Communicator 2007 R2, Lync 2010, Lync 2010 Attendee, and Lync Server 2013 do not properly handle objects in memory, which allows remote attackers to execute arbitrary code via an invitation that triggers access to a deleted object, aka "Lync RCE Vulnerability."

Skype for Business Information Disclosure Vulnerability

Skype for Business Information Disclosure Vulnerability

Skype for Business and Lync Remote Code Execution Vulnerability

Skype for Business and Lync Remote Code Execution Vulnerability

Skype for Business and Lync Spoofing Vulnerability

Skype for Business and Lync Spoofing Vulnerability

Skype for Business and Lync Denial of Service Vulnerability

Skype for Business and Lync Denial of Service Vulnerability

Skype for Business and Lync Spoofing Vulnerability

Skype for Business and Lync Spoofing Vulnerability

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'.