GHSA-7rq6-7gv8-c37h

Опубликовано: 03 нояб. 2021

Источник: github

Github: Прошло ревью

CVSS3: 8.6

Описание

Missing Authorization with Default Settings in Dashboard UI

Dashboard UI in Hangfire.Core uses authorization filters to protect it from showing sensitive data to unauthorized users. By default when no custom authorization filters specified, LocalRequestsOnlyAuthorizationFilter filter is being used to allow only local requests and prohibit all the remote requests to provide sensible, protected by default settings.

However due to the recent changes, in version 1.7.25 no authorization filters are used by default, allowing remote requests to succeed.

Impact

Missing authorization when default options are used for the Dashboard UI, e.g. when no custom authorization rules are used as recommended in the Using Dashboard documentation article.

Impacted

If you are using UseHangfireDashboard method with default DashboardOptions.Authorization property value, then your installation is impacted:

app.UseHangfireDashboard(); // Impacted app.UseHangfireDashboard("/hangfire", new DashboardOptions()); // Impacted

Not Impacted

If any other authorization filter is specified in the DashboardOptions.Authorization property, the you are not impacted:

app.UseHangfireDashboard("/hangfire", new DashboardOptions { Authorization = new []{ new SomeAuthorizationFilter(); } // Not impacted });

Patches

Patch is already available in version 1.7.26 and already available on NuGet.org, please see Hangfire.Core 1.7.26. Default authorization rules now prohibit remote requests by default again by including the LocalRequestsOnlyAuthorizationFilter filter to the default settings. Please upgrade to the newest version in order to mitigate the issue.

Workarounds

It is possible to fix the issue by using the LocalRequestsOnlyAuthorizationFilter explicitly when configuring the Dashboard UI. In this case upgrade is not required.

// using Hangfire.Dashboard; app.UseHangfireDashboard("/hangfire", new DashboardOptions { Authorization = new []{ new LocalRequestsOnlyAuthorizationFilter(); } });

References

Original GitHub Issue: https://github.com/HangfireIO/Hangfire/issues/1958

Ссылки

Пакеты

Наименование

Hangfire.Core

nuget

Затронутые версииВерсия исправления

= 1.7.25

1.7.26

EPSS

Процентиль: 51%

0.0028

Низкий

8.6 High

CVSS3

CVE ID

CVE-2021-41238

Дефекты

CWE-862

Связанные уязвимости

CVE-2021-41238

CVSS3: 8.6

nvd

больше 4 лет назад

Hangfire is an open source system to perform background job processing in a .NET or .NET Core applications. No Windows Service or separate process required. Dashboard UI in Hangfire.Core uses authorization filters to protect it from showing sensitive data to unauthorized users. By default when no custom authorization filters specified, `LocalRequestsOnlyAuthorizationFilter` filter is being used to allow only local requests and prohibit all the remote requests to provide sensible, protected by default settings. However due to the recent changes, in version 1.7.25 no authorization filters are used by default, allowing remote requests to succeed. If you are using `UseHangfireDashboard` method with default `DashboardOptions.Authorization` property value, then your installation is impacted. If any other authorization filter is specified in the `DashboardOptions.Authorization` property, the you are not impacted. Patched versions (1.7.26) are available both on Nuget.org and as a tagged releas

EPSS

Процентиль: 51%

0.0028

Низкий

8.6 High

CVSS3

CVE ID

CVE-2021-41238

Дефекты

CWE-862