Microsoft Publishes Patches for Skype for Business and Team Foundation Server

Published: 2019-01-15
Last Updated: 2019-01-15 22:41:18 UTC
by John Bambenek (Version: 1)
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Today, Microsoft published an advisory on CVE-2019-0624 on a spoofing vulnerability in Skype for Business 2015. It requires a few steps of the attacker and isn't entirely straightforward to execute. They must be an authenticated user and then send a spoofed request that can then perform a XSS on the victim machine at the privilege level of the user using Skype for Business.

Additionally, two advisories were published for Team Foundation Server (2017 and 2018) involving an XSS attack from crafted user-input (CVE-2019-0646) and an information disclosure bug (CVE-2019-0647).

The risk and urgency of applying these isn't an emergency, but if you accept input from untrusted third-parties in TFS or Skype for Business, that may enhance your risk. Due to the sensitivity of what most people use TFS for, you may wish to find a window when your developers are off and get that applied sooner.

No public exploitation has been reported, but the TFS vulnerabilities were publicly disclosed.

John Bambenek
bambenek \at\ gmail /dot/ com


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