Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
0

CVE-2020-1045

Disclosure Date: September 11, 2020 •
CVE-2020-1045
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.

The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.

The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.

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CVSS V3 Severity and Metrics
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Vector:
Unknown
Attack Vector (AV):
Unknown
Attack Complexity (AC):
Unknown
Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
ASP.NET Core 2.1 publication
ASP.NET Core 3.1 publication
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • fedoraproject,
  • microsoft,
  • redhat

Products

  • asp.net core,
  • enterprise linux 8.0,
  • enterprise linux aus 8.2,
  • enterprise linux aus 8.4,
  • enterprise linux aus 8.6,
  • enterprise linux eus 8.2,
  • enterprise linux eus 8.4,
  • enterprise linux eus 8.6,
  • enterprise linux tus 8.2,
  • enterprise linux tus 8.4,
  • enterprise linux tus 8.6,
  • fedora 32,
  • fedora 33
Technical Analysis