MitM attack in Microsoft Windows TLS implementation
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-1318 |
| CWE-ID | CWE-300 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| 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: #VU21686
Risk: Medium
CVSSv3.1: 5.3 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-1318
CWE-ID:
CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due an error when establishing a TLS session with a non- Extended Master Secret (EMS) peer. A remote attacker can perform MitM (man-in-the-middle) attack and decrypt data passed via TLS channel.
Install updates from vendor's website.
Vulnerable software versionsWindows: 7 - 10 1903 10.0.18362.116
Windows Server: 2008 - 2019 1903
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1318
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
