The Microsoft Skype for Business or Microsoft Lync installation on the remote host is missing security updates.
It is, therefore, affected by multiple vulnerabilities :

  - A security feature bypass vulnerability exists when     Skype for Business or Lync do not properly parse UNC     path links shared via messages. An attacker who     successfully exploited the vulnerability could execute     arbitrary commands in the context of the logged-in user.
    The security feature bypass by itself does not allow     arbitrary code execution. Instead, an attacker would     have to convince users to click a link to a file. In a     file-sharing attack scenario, an attacker could provide     a specially-crafted file designed to exploit the     vulnerability, and then convince a user to click the     link to the file. The update addresses the vulnerability     by correcting how Skype for Business and Lync handle     links to UNC paths. (CVE-2018-8238)

  - A remote code execution vulnerability exists when Skype     for Business and Microsoft Lync clients fail to properly     sanitize specially crafted content. The vulnerability     could corrupt memory in a way that could allow an     attacker to execute arbitrary code in the context of the     current user. An attacker who successfully exploited the     vulnerability could gain the same user rights as the     current user.  (CVE-2018-8311)

Detections

Analytics

Security Updates for Microsoft Skype for Business and Microsoft Lync (July 2018)

high Nessus Plugin ID 111045

Version 1.6