Microsoft Windows up to Server 2019 Security Credentials 7pk security

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows. The impacted element is an unknown function of the component Security. The manipulation leads to 7pk security (Credentials). This vulnerability is traded as CVE-2019-1019. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System) and classified as problematic. This issue affects an unknown functionality of the component Security. The manipulation with an unknown input leads to a 7pk security vulnerability (Credentials). Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality.

The weakness was shared 06/11/2019 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. The identification of this vulnerability is CVE-2019-1019 since 11/26/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1211 according to MITRE ATT&CK. The advisory points out:

A security feature bypass vulnerability exists where a NETLOGON message is able to obtain the session key and sign messages.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91544 (Microsoft Windows Security Update for June 2019).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (47115). The entries VDB-136323, VDB-136321, VDB-136320 and VDB-136318 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• 7 SP1
• 8.1
• 10
• 10 1607
• 10 1703
• 10 1709
• 10 1803
• 10 1809
• 10 1903
• RT 8.1
• Server 1803
• Server 1903
• Server 2008 R2 SP1
• Server 2008 SP2
• Server 2012
• Server 2012 R2
• Server 2016
• Server 2019

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://www.microsoft.com/en-us/windows

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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