Skip to content

Open redirect in ASP.NET Core

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

Package

nuget Microsoft.AspNetCore.All (NuGet)

Affected versions

>= 2.0.0, < 2.0.3

Patched versions

2.0.3
nuget Microsoft.AspNetCore.Mvc.Core (NuGet)
= 2.0.0
2.0.1

Description

ASP.NET Core 2.0 allows an attacker to steal log-in session information such as cookies or authentication tokens via a specially crafted URL aka "ASP.NET Core Elevation Of Privilege Vulnerability".

References

Published by the National Vulnerability Database Nov 15, 2017
Published to the GitHub Advisory Database May 14, 2022
Reviewed Jul 8, 2022
Last updated Jan 27, 2023

Severity

High

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
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS score

0.514%
(77th percentile)

Weaknesses

CVE ID

CVE-2017-11879

GHSA ID

GHSA-3wcj-rg8q-9cqv

Source code

No known source code
Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.