CVE-2019-1019high

Microsoft Windows Security Feature Bypass Vulnerability

46Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.5epss 14%

from disclosure to weapon30 days

Published on NVDJun 12

1st PoC+30d

exploitation probability

14%top 4% of all CVEs

observed exploitation

nono source reports it

2 public exploit(s)

A security feature bypass vulnerability exists where a NETLOGON message is able to obtain the session key and sign messages. To exploit this vulnerability, an attacker could send a specially crafted authentication request. An attacker who successfully exploited this vulnerability could access another machine using the original user privileges. The issue has been addressed by changing how NTLM validates network authentication messages.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C

Affected products

public PoCs found — 2✓ VexDay Proof

exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/47115 cve_referencepacketstormsecurity.com/files/153639/Microsoft-Windows-HTTP-To-SMB-NTLM-Reflection-Privilege-Escalation.htmlunverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

http://packetstormsecurity.com/files/153639/Microsoft-Windows-HTTP-To-SMB-NTLM-Reflection-Privilege-Escalation.html https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1019 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1019