Security Updates for Microsoft Skype for Business and Microsoft Lync (July 2019)
Medium Nessus Plugin ID 126628
SynopsisThe Microsoft Skype for Business or Microsoft Lync installation on the remote host is missing a security update.
DescriptionThe Microsoft Skype for Business or Microsoft Lync installation on the remote host is missing a security update. It is, therefore, affected by the following vulnerability :
- An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. An authenticated attacker could exploit this vulnerability by creating entities with invalid display names, which, when added to conversations, remain invisible. This security update addresses the issue by validating display names upon creation in Microsoft Exchange, and by rendering invalid display names correctly in Microsoft Outlook clients.
SolutionMicrosoft has released the following security updates to address this issue: