7.5
HIGH
CVE-2018-0786
Microsoft .NET Framework and PowerShell Core Certificate Validation Bypass
Description

Microsoft .NET Framework 2.0 SP2, 3.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, .NET Core 1.0 and 2.0, and PowerShell Core 6.0.0 allow a security feature bypass vulnerability due to the way certificates are validated, aka ".NET Security Feature Bypass Vulnerability."

INFO

Published Date :

Jan. 10, 2018, 1:29 a.m.

Last Modified :

Aug. 12, 2021, 5:19 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2018-0786 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft .net_framework
2 Microsoft powershell_core
3 Microsoft .net_core
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-0786.

URL Resource
http://www.securityfocus.com/bid/102380 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040152 Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786 Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-0786 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-0786 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Aug. 12, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:microsoft:powershell_core:6.0.0:*:*:*:*:*:*:* OR *cpe:2.3:a:microsoft:powershell_core:6.0:*:*:*:*:*:*:*
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-254 CWE-295
  • Modified Analysis by [email protected]

    Mar. 25, 2019

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:microsoft:.net_core:1.0:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_core:2.0:*:*:*:*:*:*:* OR *cpe:2.3:a:microsoft:.net_core:1.0:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_core:2.0:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:powershell_core:6.0.0:*:*:*:*:*:*:*
    Changed CPE Configuration OR *cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* AND OR *cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1511:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1511:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* OR cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 28, 2018

    Action Type Old Value New Value
    Changed Description 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". Microsoft .NET Framework 2.0 SP2, 3.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, .NET Core 1.0 and 2.0, and PowerShell Core 6.0.0 allow a security feature bypass vulnerability due to the way certificates are validated, aka ".NET Security Feature Bypass Vulnerability."
  • Initial Analysis by [email protected]

    Feb. 01, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type http://www.securityfocus.com/bid/102380 No Types Assigned http://www.securityfocus.com/bid/102380 Third Party Advisory, VDB Entry
    Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786 Patch, Vendor Advisory
    Changed Reference Type http://www.securitytracker.com/id/1040152 No Types Assigned http://www.securitytracker.com/id/1040152 Third Party Advisory, VDB Entry
    Added CWE CWE-254
    Added CPE Configuration OR *cpe:2.3:a:microsoft:.net_core:1.0:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_core:2.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jan. 12, 2018

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1040152 [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/102380 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-0786 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-0786 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.29 }} 0.02%

score

0.64413

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability