CVE-2019-1040

A tampering vulnerability exists in Microsoft Windows when a man-in-the-middle attacker is able to successfully bypass the NTLM MIC (Message Integrity Check) protection. An attacker who successfully exploited this vulnerability could gain the ability to downgrade NTLM security features. To exploit this vulnerability, the attacker would need to tamper with the NTLM exchange. The attacker could then modify flags of the NTLM packet without invalidating the signature. The update addresses the vulnerability by hardening NTLM MIC protection on the server-side.

• microsoft windows 10 • microsoft windows 10 1607 • microsoft windows 10 1703 • microsoft windows 10 1709 • microsoft windows 10 1803 • microsoft windows 10 1809 • microsoft windows 10 1903 • microsoft windows 7 • microsoft windows 8.1 • microsoft windows rt 8.1 • microsoft windows server 2008 • microsoft windows server 2008 r2 • microsoft windows server 2012 • microsoft windows server 2012 r2 • microsoft windows server 2016 • microsoft windows server 2016 1803 • microsoft windows server 2016 1903 • microsoft windows server 2019