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CVE-2019-1040— Windows NTLM Tampering Vulnerability

Quick assessment

Affected
Microsoft Windows 10 Version 1703
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows和Microsoft Windows Server都是美国微软（Microsoft）公司的产品。Microsoft Windows是一套个人设备使用的操作系统。Microsoft Windows Server是一套服务器操作系统。 Microsoft Windows中存在安全漏洞。攻击者可利用该漏洞绕过NTLM MIC保护。以下产品及版本受到影响：Microsoft Windows 10，Windows 10版本1607，Windows 10版本1703，Windows

CVSS 5.3 · Medium EPSS 48.04% · P99

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2019-1040

Vulnerability Information
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Vulnerability Title
Windows NTLM Tampering Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows和Microsoft Windows Server都是美国微软（Microsoft）公司的产品。Microsoft Windows是一套个人设备使用的操作系统。Microsoft Windows Server是一套服务器操作系统。 Microsoft Windows中存在安全漏洞。攻击者可利用该漏洞绕过NTLM MIC保护。以下产品及版本受到影响：Microsoft Windows 10，Windows 10版本1607，Windows 10版本1703，Windows
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 10 Version 1703 10.0.0 ~ publication -
Microsoft Windows 10 Version 1803 10.0.0 ~ publication -
Microsoft Windows Server, version 1803 (Server Core Installation) 10.0.0 ~ publication -
Microsoft Windows 10 Version 1809 10.0.17763.0 ~ publication -
Microsoft Windows 10 Version 1809 10.0.0 ~ publication -
Microsoft Windows Server 2019 10.0.17763.0 ~ publication -
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 ~ publication -
Microsoft Windows 10 Version 1709 for 32-bit Systems 10.0.0 ~ publication -
Microsoft Windows 10 Version 1709 10.0.0 ~ publication -
Microsoft Windows 10 Version 1903 for 32-bit Systems 10.0.0 ~ publication -
Microsoft Windows 10 Version 1903 for x64-based Systems 10.0.0 ~ publication -
Microsoft Windows 10 Version 1903 for ARM64-based Systems 10.0.0 ~ publication -
Microsoft Windows Server, version 1903 (Server Core installation) 10.0.0 ~ publication -
Microsoft Windows 10 Version 1507 10.0.10240.0 ~ publication -
Microsoft Windows 10 Version 1607 10.0.14393.0 ~ publication -
Microsoft Windows Server 2016 10.0.14393.0 ~ publication -
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 ~ publication -
Microsoft Windows 7 6.1.0 ~ publication -
Microsoft Windows 7 Service Pack 1 6.1.0 ~ publication -
Microsoft Windows 8.1 6.3.0 ~ publication -
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 ~ publication -
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 ~ publication -
Microsoft Windows Server 2008 Service Pack 2 6.0.0 ~ publication -
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 ~ publication -
Microsoft Windows Server 2008 R2 Systems Service Pack 1 6.1.0 ~ publication -
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 ~ publication -
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 ~ publication -
Microsoft Windows Server 2012 6.2.9200.0 ~ publication -
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 ~ publication -
Microsoft Windows Server 2012 R2 6.3.9600.0 ~ publication -

II. Public POCs for CVE-2019-1040

# POC Description Source Link Shenlong Link
1 CVE-2019-1040 with Exchange https://github.com/Ridter/CVE-2019-1040 POC Details
2 CVE-2019-1040 with Kerberos delegation https://github.com/Ridter/CVE-2019-1040-dcpwn POC Details
3 Updated version for the tool UltraRealy with support of the CVE-2019-1040 exploit https://github.com/lazaars/UltraRealy_with_CVE-2019-1040 POC Details
4 None https://github.com/fox-it/cve-2019-1040-scanner POC Details
5 an impacket-dependent script exploiting CVE-2019-1040 https://github.com/QAX-A-Team/dcpwn POC Details
6 The Windows Print Spooler privilege escalation vulnerability (CVE-2019-1040/CVE-2019-1019) has been implemented as a Reflective DLL for penetration testing. https://github.com/JonyFilc/PrintSpoofer-ReflectiveDLL POC Details
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III. Intelligence Information for CVE-2019-1040

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Vendor Advisories for CVE-2019-1040 (1)

Same Patch Batch · Microsoft · 2019-06-12 · 88 CVEs total

CVE-2019-0722 8.8 HIGH Windows Hyper-V Remote Code Execution Vulnerability
CVE-2019-0888 8.8 HIGH ActiveX Data Objects (ADO) Remote Code Execution Vulnerability
CVE-2019-1019 8.5 HIGH Microsoft Windows Security Feature Bypass Vulnerability
CVE-2019-1065 7.8 HIGH Windows Kernel Elevation of Privilege Vulnerability
CVE-2019-1022 7.8 HIGH Windows Audio Service Elevation of Privilege Vulnerability
CVE-2019-0908 7.8 HIGH Jet Database Engine Remote Code Execution Vulnerability
CVE-2019-0973 7.8 HIGH Windows Installer Elevation of Privilege Vulnerability
CVE-2019-0974 7.8 HIGH Jet Database Engine Remote Code Execution Vulnerability
CVE-2019-0983 7.8 HIGH Windows Storage Service Elevation of Privilege Vulnerability
CVE-2019-0985 7.8 HIGH Microsoft Speech API Remote Code Execution Vulnerability
CVE-2019-0906 7.8 HIGH Jet Database Engine Remote Code Execution Vulnerability
CVE-2019-0905 7.8 HIGH Jet Database Engine Remote Code Execution Vulnerability
CVE-2019-0904 7.8 HIGH Jet Database Engine Remote Code Execution Vulnerability
CVE-2019-1026 7.8 HIGH Windows Audio Service Elevation of Privilege Vulnerability
CVE-2019-1027 7.8 HIGH Windows Audio Service Elevation of Privilege Vulnerability
CVE-2019-1028 7.8 HIGH Windows Audio Service Elevation of Privilege Vulnerability
CVE-2019-1021 7.8 HIGH Windows Audio Service Elevation of Privilege Vulnerability
CVE-2019-1007 7.8 HIGH Windows Audio Service Elevation of Privilege Vulnerability
CVE-2019-0998 7.8 HIGH Windows Storage Service Elevation of Privilege Vulnerability
CVE-2019-1045 7.8 HIGH Windows Network File System Elevation of Privilege Vulnerability

Showing top 20 of 88 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Windows 10 Version 1703
Same vendor: Microsoft

V. Comments for CVE-2019-1040

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