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Update dependency Refit to v8 [SECURITY] - autoclosed #526

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Update dependency Refit to v8 [SECURITY] - autoclosed #526

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@renovate renovate bot commented Nov 5, 2024

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
Refit 7.2.1 -> 8.0.0 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2024-51501

Summary

The various header-related Refit attributes (Header, HeaderCollection and Authorize) are vulnerable to CRLF injection.

Details

The way HTTP headers are added to a request is via the HttpHeaders.TryAddWithoutValidation method: https://github.com/reactiveui/refit/blob/258a771f44417c6e48e103ac921fe4786f3c2a1e/Refit/RequestBuilderImplementation.cs#L1328
This method does not check for CRLF characters in the header value.

This means that any headers added to a refit request are vulnerable to CRLF-injection. In general, CRLF-injection into a HTTP header (when using HTTP/1.1) means that one can inject additional HTTP headers or smuggle whole HTTP requests.

PoC

The below example code creates a console app that takes one command line variable (a bearer token) and then makes a request to some status page with the provided token inserted in the "Authorization" header:

using Refit;

internal class Program
{
    private static void Main(string[] args)
    {
        // Usage: dotnet run <bearer token> 
        string token = args[0];
        var service = RestService.For<IStatusApi>("http://insert.some.site.here");
        string response = service.GetStatus(token).Result;
        Console.WriteLine($"Response: {response}");
    }

    public interface IStatusApi
    {
        [Get("/status")]
        Task<string> GetStatus([Authorize("Bearer")] string token);
    }
}

This application is now vulnerable to CRLF-injection, and can thus be abused to for example perform request splitting and thus server side request forgery (SSRF):

anonymous@ubuntu-sofia-672448:~$ dotnet Refit-cli.dll $'test\r\nUser-Agent: injected header!\r\n\r\nGET /smuggled HTTP/1.1\r\nHost: insert.some.site.here'
Response: <html></html>

The application intends to send a single request of the form:

GET /status HTTP/1.1
Host: insert.some.site.here
Authorization: Bearer <bearer token>

But as the application is vulnerable to CRLF injection the above command will instead result in the following two requests being sent:

GET /status HTTP/1.1
Host: insert.some.site.here
Authorization: Bearer test
User-Agent: injected header!

and

GET /smuggled HTTP/1.1
Host: insert.some.site.here

This can be confirmed by checking the access logs on the server where these commands were run (with insert.some.site.here pointing to localhost):

anonymous@ubuntu-sofia-672448:~$ sudo tail /var/log/apache2/access.log
127.0.0.1 - - [29/Aug/2024:12:17:34 +0000] "GET /status HTTP/1.1" 200 240 "-" "injected header!"
127.0.0.1 - - [29/Aug/2024:12:17:34 +0000] "GET /smuggled HTTP/1.1" 404 436 "-" "-"

Impact

If an application using the Refit library passes a user-controllable value through to a header, then that application becomes vulnerable to CRLF-injection. This is not necessarily a security issue for a command line application like the one above, but if such code were present in a web application then it becomes vulnerable to request splitting (as shown in the PoC) and thus Server Side Request Forgery.

Strictly speaking this is a potential vulnerability in applications using Refit, not in Refit itself, but I would argue that at the very least there needs to be a warning about this behaviour in the Refit documentation.

Release Notes

reactiveui/refit (Refit)

v8.0.0

Compare Source

Features
Refactoring
Fixes
General Changes
Dependencies
Contributions

New contributors since the last release: @​mithileshz, @​ted-ccm, @​TeddyAssefa
Thanks to all the contributors: @​ChrisPulman, @​marcominerva, @​mithileshz, @​sguryev, @​ted-ccm, @​TeddyAssefa, @​TimothyMakkison

The following automated services have also contributed to this release: @​renovate[bot]

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

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korbit-ai bot commented Nov 5, 2024

By default, I don't review pull requests opened by bots. If you would like me to review this pull request anyway, you can request a review via the /korbit-review command in a comment.

@renovate renovate bot requested a review from pingu2k4 November 5, 2024 00:39
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github-actions bot commented Nov 5, 2024

Test Results

1 966 tests  ±0   1 960 ✅  - 6   15s ⏱️ -1s
    3 suites ±0       0 💤 ±0 
    3 files   ±0       6 ❌ +6 

For more details on these failures, see this check.

Results for commit c39df74. ± Comparison against base commit 422d002.

This pull request removes 220 and adds 220 tests. Note that renamed tests count towards both. 
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ CreateUserJwt_ShouldReturnSuccess_WhenApiCallSucceeds(request: CreateUserJwtRequest { Duration = 1800, SessionId = "671c28f1000e6e2c1c6f", UserId = "671c28f1000e6cb302c7", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ CreateUserJwt_ShouldReturnSuccess_WhenApiCallSucceeds(request: CreateUserJwtRequest { Duration = null, SessionId = null, UserId = "671c28f1000e59e22978", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ ListUserLogs_ShouldReturnSuccess_WhenApiCallSucceeds(request: ListUserLogsRequest { Queries = null, UserId = "671c28f1000e703d0538", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ ListUserLogs_ShouldReturnSuccess_WhenApiCallSucceeds(request: ListUserLogsRequest { Queries = null, UserId = "671c28f1000e739785ca", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ ListUserTargets_ShouldReturnSuccess_WhenApiCallSucceeds(request: ListUserTargetsRequest { Queries = null, UserId = "671c28f1000e794f8f60", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ ListUserTargets_ShouldReturnSuccess_WhenApiCallSucceeds(request: ListUserTargetsRequest { Queries = null, UserId = "671c28f1000e7b7f9311", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ UpdateUserLabels_ShouldReturnSuccess_WhenApiCallSucceeds(request: UpdateUserLabelsRequest { Labels = ["label1", "label2"], UserId = "671c28f1000e731be245", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ UpdateUserLabels_ShouldReturnSuccess_WhenApiCallSucceeds(request: UpdateUserLabelsRequest { Labels = ["label3", "label4"], UserId = "671c28f1000e79d60f5b", ValidationContext = None })
PinguApps.Appwrite.Shared.Tests.Requests.Account.CreatePushTargetRequestTests ‑ IsValid_WithInvalidData_ReturnsFalse(request: CreatePushTargetRequest { Identifier = "", ProviderId = "provider123", TargetId = "671c28ec003916aebe09", ValidationContext = None })
PinguApps.Appwrite.Shared.Tests.Requests.Account.CreatePushTargetRequestTests ‑ IsValid_WithInvalidData_ReturnsFalse(request: CreatePushTargetRequest { Identifier = null, ProviderId = "provider123", TargetId = "671c28ec00391d105e85", ValidationContext = None })
…

PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ CreateUserJwt_ShouldReturnSuccess_WhenApiCallSucceeds(request: CreateUserJwtRequest { Duration = 1800, SessionId = "6729696800055f1aeb8d", UserId = "67296968000554fed1c7", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ CreateUserJwt_ShouldReturnSuccess_WhenApiCallSucceeds(request: CreateUserJwtRequest { Duration = null, SessionId = null, UserId = "6729696800054b529b78", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ ListUserLogs_ShouldReturnSuccess_WhenApiCallSucceeds(request: ListUserLogsRequest { Queries = null, UserId = "67296968000550b59129", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ ListUserLogs_ShouldReturnSuccess_WhenApiCallSucceeds(request: ListUserLogsRequest { Queries = null, UserId = "672969680005585e84b0", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ ListUserTargets_ShouldReturnSuccess_WhenApiCallSucceeds(request: ListUserTargetsRequest { Queries = null, UserId = "6729696800056adc1b9b", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ ListUserTargets_ShouldReturnSuccess_WhenApiCallSucceeds(request: ListUserTargetsRequest { Queries = null, UserId = "6729696800056e70673e", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ UpdateUserLabels_ShouldReturnSuccess_WhenApiCallSucceeds(request: UpdateUserLabelsRequest { Labels = ["label1", "label2"], UserId = "67296968000569a5781e", ValidationContext = None })
PinguApps.Appwrite.Server.Tests.Clients.Users.UsersClientTests ‑ UpdateUserLabels_ShouldReturnSuccess_WhenApiCallSucceeds(request: UpdateUserLabelsRequest { Labels = ["label3", "label4"], UserId = "6729696800056608f151", ValidationContext = None })
PinguApps.Appwrite.Shared.Tests.Requests.Account.CreatePushTargetRequestTests ‑ IsValid_WithInvalidData_ReturnsFalse(request: CreatePushTargetRequest { Identifier = "", ProviderId = "provider123", TargetId = "67296963002ff780a173", ValidationContext = None })
PinguApps.Appwrite.Shared.Tests.Requests.Account.CreatePushTargetRequestTests ‑ IsValid_WithInvalidData_ReturnsFalse(request: CreatePushTargetRequest { Identifier = null, ProviderId = "provider123", TargetId = "67296963002ff2f2579d", ValidationContext = None })
…

@renovate renovate bot changed the title Update dependency Refit to v8 [SECURITY] Update dependency Refit to v8 [SECURITY] - autoclosed Nov 6, 2024
@renovate renovate bot closed this Nov 6, 2024
@renovate renovate bot deleted the renovate/nuget-refit-vulnerability branch November 6, 2024 02:46
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