CVE-2019-1040

Description

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.

References

• Exploits
• Tenable Blogs
• More

Details

Source: Mitre, NVD

Named Vulnerability: drop the micNamed Vulnerability: Drop the MIC

Risk Information

CVSS v2

CVSS v3

EPSS