CVE-2020-0603

dotnet: Memory Corruption in SignalR

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A remote code execution vulnerability exists in ASP.NET Core software when the software fails to handle objects in memory.An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user, aka 'ASP.NET Core Remote Code Execution Vulnerability'.

Se presenta una vulnerabilidad de ejecución de código remota en el software ASP.NET Core cuando el software presenta un fallo al manejar los objetos en memoria. Un atacante que explotó con éxito la vulnerabilidad podría ejecutar código arbitrario en el contexto del usuario actual, también se conoce como "ASP.NET Core Remote Code Execution Vulnerability".

A memory corruption flaw was found in ASP.NET core. A client can write to freed memory on the server which could result in undefined behavior. An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary code by sending specially crafted requests to an ASP.NET Core application.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* 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
2024-07-27 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787: Out-of-bounds Write

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0603	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-2020-0603	2020-01-16
https://bugzilla.redhat.com/show_bug.cgi?id=1789624	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