CVE-2020-1045
Microsoft ASP.NET Core Security Feature Bypass Vulnerability
HIGH 7.5
En bref
- Source
- NVD
- EPSS
- EPSS 5.93 % · centile 93 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- microsoft
- Statut NVD
- Modified
Description
<p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.</p> <p>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.</p> <p>The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.</p>
Références
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1045
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/
- https://github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318
- https://security.snyk.io/vuln/SNYK-RHEL8-DOTNET-1439600
- https://access.redhat.com/errata/RHSA-2020:3699
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | NVD · secure@microsoft.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | NVD · nvd@nist.gov (Secondary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N | NVD · nvd@nist.gov (Primary) |
Avis
- GHSA-hxrm-9w7p-39cc — Cookie parsing failure
Références européennes
- ENISA EUVD · EUVD-2022-4249
- GCVE · GCVE-0-2020-1045
Avis du CERT-FR
- CERTFR-2020-AVI-563 — Vulnérabilité dans Microsoft .Net · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*≥ 2.1 ≤ 2.1.21cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*≥ 3.1 < 3.1.8cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_aus:8.2:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_aus:8.4:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_aus:8.6:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_tus:8.2:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_tus:8.4:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux_tus:8.6:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Microsoft · ASP.NET Core 2.1 | affected 2.0 < publication |
| Microsoft · ASP.NET Core 3.1 | affected 3.0 < publication |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |