Microsoft Windows 10/Server 2016 SMB data processing

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CVSS Meta Temp Score
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CTI Interest Score
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7.9$5k-$25k0.00

A vulnerability was found in Microsoft Windows 10/Server 2016 (Operating System) and classified as very critical. This issue affects some unknown functionality of the component SMB. Using CWE to declare the problem leads to CWE-19. Impacted is confidentiality, integrity, and availability.

The bug was discovered 10/10/2017. The weakness was presented 10/10/2017 by Nicolas Joly as KB4041691 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2017-11780 since 07/31/2017. The attack may be initiated remotely. A simple authentication is required for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/16/2021). The advisory points out:

A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server.

The vulnerability scanner Nessus provides a plugin with the ID 103876 (Microsoft Windows SMB Server (2017-10) Multiple Vulnerabilities (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context remote. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91411 (Microsoft Windows Security Update October 2017 (KRACK Attack) (ROCA)).

Applying the patch KB4041691 is able to eliminate this problem. The bugfix is ready for download at catalog.update.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 101110), SecurityTracker (ID 1039528) and Tenable (103876). See 107717, 107720, 107721 and 107723 for similar entries.

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VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 7.9

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 8.1
Vendor Vector (Microsoft): 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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Exploitinginfoedit

Class: Unknown
CWE: CWE-19
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 103876
Nessus Name: Microsoft Windows SMB Server (2017-10) Multiple Vulnerabilities (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4042895)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

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Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

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0-Day Time: 🔍
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Patch: KB4041691

Timelineinfoedit

07/31/2017 🔍
10/10/2017 +70 days 🔍
10/10/2017 +0 days 🔍
10/10/2017 +0 days 🔍
10/10/2017 +0 days 🔍
10/11/2017 +1 days 🔍
10/13/2017 +2 days 🔍
10/17/2017 +4 days 🔍
01/16/2021 +1187 days 🔍

Sourcesinfoedit

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

Advisory: KB4041691
Researcher: Nicolas Joly
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-11780 (🔍)
OVAL: 🔍

SecurityFocus: 101110
SecurityTracker: 1039528

scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfoedit

Created: 10/11/2017 11:38 PM
Updated: 01/16/2021 04:40 PM
Changes: (3) advisory_person_name source_securityfocus_date source_securityfocus_class
Complete: 🔍

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