Microsoft Windows up to XP SP3 SMBv1 Server information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows and classified as problematic. The impacted element is an unknown function of the component SMBv1 Server. Such manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2017-0276. The attack can be launched remotely. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows (Operating System). It has been rated as problematic. Affected by this issue is an unknown code of the component SMBv1 Server. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The bug was discovered 05/09/2017. The weakness was disclosed 05/09/2017 with Offensive Security as KB4018466 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability is handled as CVE-2017-0276 since 09/09/2016. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project. The advisory points out:

An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. An attacker who successfully exploited this vulnerability could craft a special packet, which could lead to information disclosure from the server. To exploit the vulnerability, in most situations, an unauthenticated attacker could send a specially crafted packet to a targeted SMBv1 server.

The vulnerability scanner Nessus provides a plugin with the ID 100464 (Microsoft Windows SMBv1 Multiple Vulnerabilities), 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 r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91369 (Microsoft Windows Security Update May 2017).

Applying the patch KB4018466 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 Tenable (100464) and SecurityFocus (BID 98268†). The entries VDB-100999, VDB-101000, VDB-101001 and VDB-101002 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.0
Vendor Vector (Microsoft): 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100464
Nessus Name: Microsoft Windows SMBv1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800218
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4019474)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: KB4018466

Timelineinfo

09/09/2016 🔍
05/09/2017 +242 days 🔍
05/09/2017 +0 days 🔍
05/09/2017 +0 days 🔍
05/09/2017 +0 days 🔍
05/10/2017 +1 days 🔍
05/12/2017 +2 days 🔍
05/26/2017 +14 days 🔍
08/21/2024 +2644 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: KB4018466
Researcher: Viktor Brange
Organization: Offensive Security
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-0276 (🔍)
GCVE (CVE): GCVE-0-2017-0276
GCVE (VulDB): GCVE-100-101042

OVAL: 🔍

SecurityFocus: 98268 - Microsoft Windows SMB Server CVE-2017-0276 Information Disclosure Vulnerability

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

Entryinfo

Created: 05/10/2017 15:07
Updated: 08/21/2024 23:53
Changes: 05/10/2017 15:07 (88), 10/17/2019 21:18 (6), 12/23/2020 08:28 (2), 12/23/2020 08:32 (1), 08/21/2024 23:53 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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