Improper Certificate Validation · CVE-2017-11770 · GitHub Advisory Database · GitHub

Improper Certificate Validation

High severity GitHub Reviewed Published Apr 12, 2022 to the GitHub Advisory Database • Updated Jan 11, 2023

Package

Microsoft.NETCore.App (NuGet)

Affected versions

>= 1.0.0, < 2.0.3

Patched versions

2.0.3

System.Security.Cryptography.X509Certificates (NuGet)

>= 4.0.0, < 4.1.2

4.1.2

Description

.NET Core 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly parsing certificate data. A denial of service vulnerability exists when .NET Core improperly handles parsing certificate data, aka ".NET CORE Denial Of Service Vulnerability".

References

Published to the GitHub Advisory Database Apr 12, 2022

Reviewed Apr 12, 2022

Last updated Jan 11, 2023

Severity

High

7.5

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H