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Improper Input Validation in .Net Framework API's

Moderate severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

nuget Microsoft.NETCore.App (NuGet)

Affected versions

>= 2.2.0, < 2.2.2
>= 2.1.0, < 2.1.8

Patched versions

2.2.2
2.1.8
nuget System.Private.Uri (NuGet)
>= 4.3.0, < 4.3.2
4.3.2

Description

A vulnerability exists in certain .Net Framework API's and Visual Studio in the way they parse URL's, aka '.NET Framework and Visual Studio Spoofing Vulnerability'.

References

Published by the National Vulnerability Database Mar 5, 2019
Published to the GitHub Advisory Database May 14, 2022
Reviewed Jul 8, 2022
Last updated Jan 27, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS score

0.206%
(59th percentile)

Weaknesses

CVE ID

CVE-2019-0657

GHSA ID

GHSA-x5qj-9vmx-7g6g

Source code

No known source code
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