CVE-2020-0602

dotnet: Denial of service via backpressure issue

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Se presenta una vulnerabilidad de denegación de servicio cuando ASP.NET Core maneja inapropiadamente las peticiones web, también se conoce como "ASP.NET Core Denial of Service Vulnerability".

A denial of service flaw was found in ASP.NET Core. An unauthenticated, remote attacker could exploit this vulnerability by sending specially crafted requests to an ASP.NET Core application. The highest threat from this flaw is system availability.

.NET Core is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. New versions of .NET Core that address security vulnerabilities are now available. The updated versions are .NET Core SDK 3.0.102, .NET Core Runtime 3.0.2, .NET Core SDK 3.1.101 and .NET Core Runtime 3.1.1. Security Fixes: dotnet: Memory Corruption in SignalR. Issues addressed include a denial of service vulnerability.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-11-04 CVE Reserved
2020-01-14 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0602	2021-07-21

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2020:0130	2021-07-21
https://access.redhat.com/errata/RHSA-2020:0134	2021-07-21
https://access.redhat.com/security/cve/CVE-2020-0602	2020-01-16
https://bugzilla.redhat.com/show_bug.cgi?id=1789623	2020-01-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Asp.net Core Search vendor "Microsoft" for product "Asp.net Core"				2.1 Search vendor "Microsoft" for product "Asp.net Core" and version "2.1"		-		Affected
Microsoft Search vendor "Microsoft"		Asp.net Core Search vendor "Microsoft" for product "Asp.net Core"				3.0 Search vendor "Microsoft" for product "Asp.net Core" and version "3.0"		-		Affected
Microsoft Search vendor "Microsoft"		Asp.net Core Search vendor "Microsoft" for product "Asp.net Core"				3.1 Search vendor "Microsoft" for product "Asp.net Core" and version "3.1"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Eus Search vendor "Redhat" for product "Enterprise Linux Eus"				8.1 Search vendor "Redhat" for product "Enterprise Linux Eus" and version "8.1"		-		Affected