CVE-2019-1166Improper Validation of Integrity Check Value in Microsoft Windows

Severity
5.9MEDIUMNVD
EPSS
13.0%
top 5.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedOct 10
Latest updateMay 24

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, aka 'Windows NTLM Tampering Vulnerability'.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 2.2 | Impact: 3.6

Affected Packages7 packages

CVEListV5microsoft/windows20 versions+19
NVDmicrosoft/windowsr2, 1803, 1903+2
NVDmicrosoft/windows_106 versions+5
CVEListV5microsoft/windows_server17 versions+16

Patches

🔴Vulnerability Details

2
GHSA
GHSA-6576-35f2-4q5m: A tampering vulnerability exists in Microsoft Windows when a man-in-the-middle attacker is able to successfully bypass the NTLM MIC (Message Integrity2022-05-24
CVEList
CVE-2019-1166: A tampering vulnerability exists in Microsoft Windows when a man-in-the-middle attacker is able to successfully bypass the NTLM MIC (Message Integrity2019-10-10

📋Vendor Advisories

1
Microsoft
Windows NTLM Tampering Vulnerability2019-10-08

🕵️Threat Intelligence

4
Trendmicro
Short October Patch Tuesday: 9 Critical Fixes Featured2019-10-09
Trendmicro
Short October Patch Tuesday: 9 Critical Fixes Featured2019-10-09
Talos
Microsoft Patch Tuesday — Oct. 2019: Vulnerability disclosures and Snort coverage2019-10-08
Talos
Microsoft Patch Tuesday — Oct. 2019: Vulnerability disclosures and Snort coverage2019-10-08
CVE-2019-1166 — Microsoft Windows vulnerability | cvebase