FKIE_CVE-2020-1045

Vulnerability from fkie_nvd - Published: 2020-09-11 17:15 - Updated: 2024-11-21 05:09
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
<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>
References
secure@microsoft.comhttps://access.redhat.com/errata/RHSA-2020:3699Third Party Advisory
secure@microsoft.comhttps://github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318Release Notes, Third Party Advisory
secure@microsoft.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/
secure@microsoft.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/
secure@microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1045Patch, Vendor Advisory
secure@microsoft.comhttps://security.snyk.io/vuln/SNYK-RHEL8-DOTNET-1439600Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2020:3699Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1045Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.snyk.io/vuln/SNYK-RHEL8-DOTNET-1439600Third Party Advisory
Impacted products
Vendor Product Version
microsoft asp.net_core *
microsoft asp.net_core *
fedoraproject fedora 32
fedoraproject fedora 33
redhat enterprise_linux 8.0
redhat enterprise_linux_aus 8.2
redhat enterprise_linux_aus 8.4
redhat enterprise_linux_aus 8.6
redhat enterprise_linux_eus 8.2
redhat enterprise_linux_eus 8.4
redhat enterprise_linux_eus 8.6
redhat enterprise_linux_tus 8.2
redhat enterprise_linux_tus 8.4
redhat enterprise_linux_tus 8.6
To clipboard 

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  "lastModified": "2024-11-21T05:09:37.813",
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.