CVE-2018-0786 : 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,

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."

Published 2018-01-10 01:29:00

Updated 2021-08-12 17:19:05

Source Microsoft Corporation

View at NVD, CVE.org

Products affected by CVE-2018-0786

Microsoft » .net Framework » Version: 2.0 Update SP2
cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
Microsoft » .net Framework » Version: 3.5
cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: N/A
When used together with: Microsoft » Windows 10 » Version: 1511
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows 10 » Version: 1703
When used together with: Microsoft » Windows 10 » Version: 1709
When used together with: Microsoft » Windows 8.1 » Version: N/A
When used together with: Microsoft » Windows Server 2012 » Version: N/A
When used together with: Microsoft » Windows Server 2012 » Version: R2
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » .net Framework » Version: 3.5.1
cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 7 » Version: N/A Update SP1
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1 For Itanium
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1 For X64
Microsoft » .net Framework » Version: 3.0 Update SP2
cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
Microsoft » .net Framework » Version: 4.5.2
cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 7 » Version: N/A Update SP1
When used together with: Microsoft » Windows 8.1 » Version: N/A
When used together with: Microsoft » Windows Rt 8.1 » Version: N/A
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1 For X64
When used together with: Microsoft » Windows Server 2012 » Version: N/A
When used together with: Microsoft » Windows Server 2012 » Version: R2
Microsoft » .net Framework » Version: 4.6
cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: N/A
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
Microsoft » .net Framework » Version: 4.6.1
cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1511
Microsoft » .net Framework » Version: 4.6.2
cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » .net Framework » Version: 4.7
cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » .net Framework » Version: 4.7.1
cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: 1709
Microsoft » .net Core » Version: 1.0
cpe:2.3:a:microsoft:.net_core:1.0:*:*:*:*:*:*:*
Matching versions
Microsoft » .net Core » Version: 2.0
cpe:2.3:a:microsoft:.net_core:2.0:*:*:*:*:*:*:*
Matching versions
Microsoft » Powershell Core » Version: 6.0
cpe:2.3:a:microsoft:powershell_core:6.0:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2018-0786

EPSS FAQ

0.78%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 81 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-0786

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2018-0786

CWE-295 Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-0786

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0786

CVE-2018-0786 | .NET Security Feature Bypass Vulnerability
Patch;Vendor Advisory
http://www.securitytracker.com/id/1040152

Microsoft .NET Flaws Let Remote Users Deny Service and Bypass Certificate Security Restrictions - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url
http://www.securityfocus.com/bid/102380

Microsoft .NET Framework CVE-2018-0786 Security Bypass Vulnerability
Third Party Advisory;VDB Entry

Jump to

Vulnerability Details : CVE-2018-0786

Products affected by CVE-2018-0786

Exploit prediction scoring system (EPSS) score for CVE-2018-0786

CVSS scores for CVE-2018-0786

CWE ids for CVE-2018-0786

References for CVE-2018-0786