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Fencer Vulns
high 7.5

CVE-2018-8292 in the critical feed json

.NET Core Information Disclosure

published 2018-10-10 8 y ago modified 2026-06-17 4 mo ago also GHSA-7jgj-8wvc-jh57 , EUVD-2021-0791

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.8%
EPSS 14.8% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

An information disclosure vulnerability exists in .NET Core when authentication information is inadvertently exposed in a redirect, aka ".NET Core Information Disclosure Vulnerability." This affects .NET Core 2.1, .NET Core 1.0, .NET Core 1.1, PowerShell Core 6.0.

Patch / fix

  • nuget System.Net.Http 4.3.4
  • rh-dotnetcore10-dotnetcore RHEL 1.0 DOTNET 1.0.13-1.el7
  • rh-dotnetcore11-dotnetcore RHEL 1.1 DOTNET 1.1.10-1.el7

red hat advisories RHSA-2018:2902

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-2018-8292 updated cvss 7.4

Core: information disclosure due to authentication information exposed in a redirect

  • Red Hat .NET Core 2.0 on Red Hat Enterprise Linux rh-dotnet20-dotnet
    affected: no fix planned “Out of support scope”
  • Red Hat .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnetcore10-dotnetcore 1.0.13-1.el7, rh-dotnetcore11-dotnetcore 1.1.10-1.el7 Red Hat .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnetcore10-dotnetcore 1.0.13-1.el7, rh-dotnetcore11-dotnetcore 1.1.10-1.el7 Red Hat .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnetcore10-dotnetcore 1.0.13-1.el7, rh-dotnetcore11-dotnetcore 1.1.10-1.el7
    fixed: vendor fix RHSA-2018:2902
  • Red Hat .NET Core 2.1 on Red Hat Enterprise Linux rh-dotnet21-dotnet, rh-dotnet21-dotnet-host, rh-dotnet21-dotnet-sdk-2.1, rh-dotnet21-dotnet-runtime-2.1, rh-dotnet21-dotnet-sdk-2.1.3xx, rh-dotnet21-dotnet-sdk-2.1.4xx, +1 more
    not affected: vulnerable code not present

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

Exploit prediction

14.83% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
nuget System.Net.Http
<4.3.4
4.3.4

Affected products

  • Microsoft PowerShell Core
  • Microsoft .NET Core

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.