NTLM Tampering in Microsoft Windows
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-1040 |
| CWE-ID | CWE-300 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Man-in-the-Middle (MitM) attack
EUVDB-ID: #VU47858
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-1040
CWE-ID:
CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to a tampering issue. A remote attacker can perform a man-in-the-middle attack, bypass the NTLM MIC (Message Integrity Check) protection and downgrade NTLM security features.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows: 7 - 10 1903
Windows Server: 2008 - 2019 1903
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1040
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
