Microsoft .NET up to 4.7 Security Feature 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft .NET up to 4.7. This impacts an unknown function of the component Security Feature. Such manipulation leads to 7pk security. This vulnerability is referenced as CVE-2018-0786. It is possible to launch the attack remotely. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Microsoft .NET up to 4.7 and classified as critical. Affected by this issue is an unknown functionality of the component Security Feature. The manipulation with an unknown input leads to a 7pk security vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Microsoft .NET Framework 1.1, 2.0, 3.0, 3.5, 3.5.1, 4, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, and 4.7 and .NET Core 1.0 and 2.0 allow a security feature bypass vulnerability due to the way certificates are validated, aka ".NET Security Feature Bypass Vulnerability".

The bug was discovered 01/09/2018. The weakness was published 01/09/2018 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability is handled as CVE-2018-0786 since 12/01/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1211. The advisory points out:

A security feature bypass vulnerability exists when Microsoft .NET Framework (and .NET Core) components do not completely validate certificates.

The vulnerability scanner Nessus provides a plugin with the ID 105729 (Security Update for .NET Core (January 2018) (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91427 (Microsoft .NET Framework Security Update January 2018).

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 databases at Tenable (105729) and SecurityFocus (BID 102380†). Similar entry is available at VDB-111557. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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: 7pk security
CWE: CWE-254
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: 105729
Nessus Name: Security Update for .NET Core (January 2018) (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 870324
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4056892)
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: 🔍

Timelineinfo

12/01/2017 🔍
01/09/2018 +39 days 🔍
01/09/2018 +0 days 🔍
01/09/2018 +0 days 🔍
01/09/2018 +0 days 🔍
01/09/2018 +0 days 🔍
01/10/2018 +1 days 🔍
01/10/2018 +0 days 🔍
01/29/2021 +1115 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0786 (🔍)
GCVE (CVE): GCVE-0-2018-0786
GCVE (VulDB): GCVE-100-111560

OVAL: 🔍

SecurityFocus: 102380 - Microsoft .NET Framework CVE-2018-0786 Security Bypass Vulnerability
SecurityTracker: 1040152

See also: 🔍

Entryinfo

Created: 01/10/2018 14:17
Updated: 01/29/2021 12:36
Changes: 01/10/2018 14:17 (78), 12/28/2019 20:13 (4), 01/29/2021 12:36 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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