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Fencer Vulns
high 8.1

CVE-2023-33170 json

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

published 2023-07-11 3 y ago modified 2026-09-08 2 mo ago also BIT-dotnet-2023-33170 , BIT-dotnet-sdk-2023-33170 , EUVD-2023-1922 , GHSA-25c8-p796-jg6r

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

ASP.NET and Visual Studio Security Feature Bypass Vulnerability

Patch / fix

  • nuget Microsoft.AspNetCore.Identity 2.1.39
  • nuget Microsoft.AspNet.Identity.Owin 2.2.4
  • nuget Microsoft.AspNetCore.App.Runtime.linux-arm 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.linux-arm64 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.linux-musl-arm 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.linux-x64 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.osx-x64 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.win-arm 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.win-arm64 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.win-x64 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.win-x86 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.osx-arm64 6.0.20, 7.0.9
  • nuget Microsoft.AspNetCore.App.Runtime.linux-musl-x64 6.0.20, 7.0.9
  • bitnami dotnet 6.0.20, 7.0.9
  • bitnami dotnet-sdk 6.0.20, 7.0.9
  • Microsoft Microsoft Visual Studio 2022 version 17.2 17.2.17
  • Microsoft Microsoft Visual Studio 2022 version 17.0 17.0.23
  • Microsoft Microsoft Visual Studio 2022 version 17.4 17.4.9
  • Microsoft Microsoft Visual Studio 2022 version 17.6 17.6.5
  • Microsoft .NET 6.0 6.0.20
  • Microsoft .NET 7.0 7.0.9
  • dotnet6 Ubuntu 22.04 LTS 6.0.120-0ubuntu1~22.04.1
  • dotnet7 Ubuntu 22.04 LTS 7.0.109-0ubuntu1~22.04.1

ubuntu advisories UBUNTU-CVE-2023-33170

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • dotnet RHEL 8 7.0.109-1.el8_8
  • dotnet7.0 RHEL 8 7.0.109-1.el8_8
  • dotnet-host RHEL 8 7.0.9-1.el8_8
  • dotnet-sdk-7.0 RHEL 8 7.0.109-1.el8_8
  • dotnet-hostfxr-7.0 RHEL 8 7.0.9-1.el8_8
  • dotnet-runtime-7.0 RHEL 8 7.0.9-1.el8_8
  • dotnet-templates-7.0 RHEL 8 7.0.109-1.el8_8
  • aspnetcore-runtime-7.0 RHEL 8 7.0.9-1.el8_8

red hat advisories RHSA-2023:4449RHSA-2023:4448RHSA-2023:4058RHSA-2023:4057RHSA-2023:4060RHSA-2023:4061

  • dotnet-host AlmaLinux 9 7.0.9-1.el9_2
  • dotnet-sdk-7.0 AlmaLinux 9 7.0.109-1.el9_2
  • dotnet-hostfxr-7.0 AlmaLinux 9 7.0.9-1.el9_2
  • dotnet-runtime-7.0 AlmaLinux 9 7.0.9-1.el9_2
  • dotnet-templates-7.0 AlmaLinux 9 7.0.109-1.el9_2
  • aspnetcore-runtime-7.0 AlmaLinux 9 7.0.9-1.el9_2
  • dotnet-apphost-pack-7.0 AlmaLinux 9 7.0.9-1.el9_2
  • dotnet-targeting-pack-7.0 AlmaLinux 9 7.0.9-1.el9_2

almalinux advisories ALSA-2023:4057ALSA-2023:4058ALSA-2023:4059ALSA-2023:4060

  • dotnet7.0 Rocky Linux 8 7.0.109-1.el8_8
  • dotnet6.0 Rocky Linux 8 6.0.120-1.el8_8

rocky linux advisories RLSA-2023:4058RLSA-2023:4059

  • dotnet6-build Alpine 3.20, Alpine 3.19, Alpine 3.18 6.0.120-r0
  • dotnet7-build Alpine 3.19, Alpine 3.18 7.0.109-r0
  • dotnet6-runtime Alpine 3.20, Alpine 3.19, Alpine 3.18 6.0.20-r0
  • dotnet7-runtime Alpine 3.19, Alpine 3.18 7.0.9-r0

alpine advisories ALPINE-CVE-2023-33170

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-33170 updated cvss 8.1

dotnet: race condition in Core SignInManager<TUser> PasswordSignInAsync method

  • Red Hat .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet60-dotnet 6.0.120-1.el7_9, rh-dotnet60-dotnet-host 6.0.20-1.el7_9, rh-dotnet60-dotnet-sdk-6.0 6.0.120-1.el7_9, rh-dotnet60-dotnet-hostfxr-6.0 6.0.20-1.el7_9, rh-dotnet60-dotnet-runtime-6.0 6.0.20-1.el7_9, rh-dotnet60-dotnet-templates-6.0 6.0.120-1.el7_9, +6 more Red Hat .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet60-dotnet 6.0.120-1.el7_9, rh-dotnet60-dotnet-host 6.0.20-1.el7_9, rh-dotnet60-dotnet-sdk-6.0 6.0.120-1.el7_9, rh-dotnet60-dotnet-hostfxr-6.0 6.0.20-1.el7_9, rh-dotnet60-dotnet-runtime-6.0 6.0.20-1.el7_9, rh-dotnet60-dotnet-templates-6.0 6.0.120-1.el7_9, +6 more Red Hat .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet60-dotnet 6.0.120-1.el7_9, rh-dotnet60-dotnet-host 6.0.20-1.el7_9, rh-dotnet60-dotnet-sdk-6.0 6.0.120-1.el7_9, rh-dotnet60-dotnet-hostfxr-6.0 6.0.20-1.el7_9, rh-dotnet60-dotnet-runtime-6.0 6.0.20-1.el7_9, rh-dotnet60-dotnet-templates-6.0 6.0.120-1.el7_9, +6 more
    fixed: vendor fix RHSA-2023:4061
  • Red Hat CodeReady Linux Builder EUS (v.8.6) dotnet-sdk-6.0-source-built-artifacts 6.0.120-1.el8_6
    fixed: vendor fix RHSA-2023:4448
  • Red Hat CodeReady Linux Builder EUS (v.9.0) dotnet-sdk-6.0-source-built-artifacts 6.0.120-1.el9_0
    fixed: vendor fix RHSA-2023:4449
  • Red Hat Enterprise Linux AppStream (v. 8) dotnet 7.0.109-1.el8_8, dotnet-host 7.0.9-1.el8_8, dotnet6.0 6.0.120-1.el8_8, dotnet7.0 7.0.109-1.el8_8, dotnet-sdk-6.0 6.0.120-1.el8_8, dotnet-sdk-7.0 7.0.109-1.el8_8, +15 more
    fixed: vendor fix RHSA-2023:4059
  • Red Hat Enterprise Linux AppStream (v. 9) dotnet-host 7.0.9-1.el9_2, dotnet6.0 6.0.120-1.el9_2, dotnet7.0 7.0.109-1.el9_2, dotnet-sdk-6.0 6.0.120-1.el9_2, dotnet-sdk-7.0 7.0.109-1.el9_2, dotnet-hostfxr-7.0 7.0.9-1.el9_2, +14 more
    fixed: vendor fix RHSA-2023:4060
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) dotnet 6.0.120-1.el8_6, dotnet6.0 6.0.120-1.el8_6, dotnet-host 6.0.20-1.el8_6, dotnet-sdk-6.0 6.0.120-1.el8_6, dotnet-hostfxr-6.0 6.0.20-1.el8_6, dotnet-runtime-6.0 6.0.20-1.el8_6, +6 more
    fixed: vendor fix RHSA-2023:4448
  • Red Hat Enterprise Linux AppStream EUS (v.9.0) dotnet6.0 6.0.120-1.el9_0, dotnet-host 6.0.20-1.el9_0, dotnet-sdk-6.0 6.0.120-1.el9_0, dotnet-hostfxr-6.0 6.0.20-1.el9_0, dotnet-runtime-6.0 6.0.20-1.el9_0, dotnet-templates-6.0 6.0.120-1.el9_0, +5 more
    fixed: vendor fix RHSA-2023:4449
  • Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-6.0-source-built-artifacts 6.0.120-1.el8_8, dotnet-sdk-7.0-source-built-artifacts 7.0.109-1.el8_8
    fixed: vendor fix RHSA-2023:4059
show 1 more
  • Red Hat Enterprise Linux CRB (v. 9) dotnet-sdk-6.0-source-built-artifacts 6.0.120-1.el9_2, dotnet-sdk-7.0-source-built-artifacts 7.0.109-1.el9_2
    fixed: vendor fix RHSA-2023:4060

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-165-04 updated cvss 8.1

Siemens ST7 ScadaConnect

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
17 mo ago

Exploit prediction

1.99% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
GitHub 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
nuget Microsoft.AspNetCore.Identity
<2.1.39
2.1.39
nuget Microsoft.AspNet.Identity.Owin
<2.2.4
2.2.4
nuget Microsoft.AspNetCore.App.Runtime.linux-arm
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.linux-arm64
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.linux-musl-arm
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.linux-musl-arm64
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.linux-x64
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.osx-x64
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.win-arm
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.win-arm64
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.win-x64
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.win-x86
<6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
nuget Microsoft.AspNetCore.App.Runtime.osx-arm64
>=7.0.0, <7.0.9
<6.0.20
7.0.9
6.0.20
nuget Microsoft.AspNetCore.App.Runtime.linux-musl-x64
>=7.0.0, <7.0.9
<6.0.20
7.0.9
6.0.20
bitnami dotnet
>=6.0.0, <6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9
bitnami dotnet-sdk
>=6.0.0, <6.0.20
>=7.0.0, <7.0.9
6.0.20
7.0.9

Affected products

  • Microsoft Microsoft Visual Studio 2022 version 17.2
  • Microsoft Microsoft Visual Studio 2022 version 17.0
  • Microsoft Microsoft Visual Studio 2022 version 17.4
  • Microsoft Microsoft Visual Studio 2022 version 17.6
  • Microsoft .NET 6.0
  • Microsoft .NET 7.0

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.