Lucene search
K
Catalog
Vendors
Products
Timeline
Vulnerabilities
Sources
Documentation
Blog
Glossary
FAQ
Brand assets
Assessment
Agents dashboard
Agent Scanning
API Scanning
Assessment API
Alerts
Email notifications
Webhook notifications
Alerts API
SBOM package analysis
API Reference
Support
Settings
Sign in

dotnet: ASP.NET cookie prefix spoofing vulnerability

🗓️ 08 Sep 2020 19:04:18Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 5 Views

Flaw in the web framework allows cookies to be decoded improperly, bypassing cookie prefixes and risking data integrity.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ALT Linux		Security fix for the ALT Linux 10 package dotnet-bootstrap-3.1 version 3.1.11-alt1
28 Jan 202100:00
–altlinux
ALT Linux		Security fix for the ALT Linux 9 package dotnet-bootstrap-3.1 version 3.1.11-alt1
28 Jan 202100:00
–altlinux
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities may affect IBM Robotic Process Automation
4 May 202218:53
–ibm
Information Security Automation		Microsoft Patch Tuesday September 2020: Zerologon and other exploits, RCEs in SharePoint and Exchange
30 Sep 202023:46
–avleonov
BDU FSTEC		The vulnerability of the ASP.NET Core software platform’s cookie analyzer allows a hacker to bypass security functions.
7 Oct 202000:00
–bdu_fstec
Circl		CVE-2020-1045
11 Dec 202307:26
–circl
CNVD		Microsoft .NET Core and ASP.NET Core Security Feature Bypass Vulnerability
10 Sep 202000:00
–cnvd
CVE		CVE-2020-1045
11 Sep 202000:00
–cve
Cvelist		CVE-2020-1045 Microsoft ASP.NET Core Security Feature Bypass Vulnerability
11 Sep 202000:00
–cvelist
Oracle linux		.NET Core 3.1 security and bugfix update
11 Sep 202000:00
–oraclelinux
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8x86_64aspnetcore-runtime-3.10:3.1.8-2.el8_2aspnetcore-runtime-3.1-0:3.1.8-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64aspnetcore-targeting-pack-3.10:3.1.8-2.el8_2aspnetcore-targeting-pack-3.1-0:3.1.8-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64dotnet0:3.1.108-2.el8_2dotnet-0:3.1.108-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64dotnet-apphost-pack-3.10:3.1.8-2.el8_2dotnet-apphost-pack-3.1-0:3.1.8-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64dotnet-apphost-pack-3.1-debuginfo0:3.1.8-2.el8_2dotnet-apphost-pack-3.1-debuginfo-0:3.1.8-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64dotnet-host0:3.1.8-2.el8_2dotnet-host-0:3.1.8-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64dotnet-host-debuginfo0:3.1.8-2.el8_2dotnet-host-debuginfo-0:3.1.8-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64dotnet-hostfxr-3.10:3.1.8-2.el8_2dotnet-hostfxr-3.1-0:3.1.8-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64dotnet-hostfxr-3.1-debuginfo0:3.1.8-2.el8_2dotnet-hostfxr-3.1-debuginfo-0:3.1.8-2.el8_2.x86_64.rpm
Red Hat Enterprise Linux8x86_64dotnet-runtime-3.10:3.1.8-2.el8_2dotnet-runtime-3.1-0:3.1.8-2.el8_2.x86_64.rpm
Rows per page

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

Book a live demo
23 Feb 2026 18:54Current
5.8Medium risk
Vulners AI Score5.8
CVSS 25
CVSS 3.17.5
EPSS0.06624
SSVC
CWE-807
cookie prefix spoofingcookie decoding flawdata integrity riskremote attacker
5