Medium severity · published Jul 11, 2018
CVE-2018-8356
A security feature bypass vulnerability exists when Microsoft .NET Framework components do not correctly validate certificates, aka ".NET Framework Security Feature Bypass…
5.5
CVSS
0.7%
EPSS
No
On KEV
Description
A security feature bypass vulnerability exists when Microsoft .NET Framework components do not correctly validate certificates, aka ".NET Framework Security Feature Bypass Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, ASP.NET Core 1.1, Microsoft .NET Framework 4.5.2, ASP.NET Core 2.0, ASP.NET Core 1.0, .NET Core 1.1, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 1.0, .NET Core 2.0, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NC
.net Core · Microsoft
1.0; 1.1; 2.0 · source: NVD
NF
.net Framework · Microsoft
3.0; 3.5; 3.5.1; 4.5.2; 4.6; 4.6.2; +13 more · source: NVD
NF
.net Framework Developer Pack · Microsoft
4.7.2 · source: NVD
AC
Asp.net Core · Microsoft
1.0; 1.1; 2.0 · source: NVD
PC
Powershell Core · Microsoft
6.0; 6.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-8356
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-8356
Third Party Advisory
http://www.securityfocus.com/bid/104664
Third Party Advisory
http://www.securitytracker.com/id/1041257
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8356
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