PT-2019-3628 · Microsoft · Windows

Yaron Zinar · Publicado 2019-10-08 · Atualizado 2026-03-01 · CVE-2019-1166

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Média

Vetor base

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Windows (affected versions not specified)

Description The issue is related to insufficient authentication of NTLM packets in Windows, allowing a remote attacker to downgrade the security features of the NTLM MIC (Message Integrity Check) mechanism by modifying an NTLM packet flag without breaking the signature authenticity. This can be exploited by a man-in-the-middle attacker to bypass the NTLM MIC protection.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Enumeração de Fraquezas

CWE-354

CWE-485

CWE-254

Identificadores relacionados

BDU:2019-03843

CVE-2019-1166

Produtos afetados

Windows

Referências · 8

• https://bdu.fstec.ru/vul/2019-03843 · Nota de Segurança
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1166 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2019-1166 · Nota de Segurança
• https://t.me/hybgl/706 · Publicação no Telegram
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2019-1166 · Aviso do Fabricante
• https://t.me/cybersecuritytechnologies/797 · Publicação no Telegram
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1166 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2019-1166 · Aviso do Fabricante