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JMR-devandClaude Opus 4.8 15737ad639 Harden remote web server security
All changes are localized to RemoteWebServer plus two small helpers; the
Phase 0 characterization tests confirm routing, JSON/Prometheus shape, and
credential pass/fail semantics are otherwise unchanged.

- Password hashing: new PasswordHasher uses PBKDF2-HMAC-SHA256 with a
  per-credential random salt (self-describing pbkdf2$iters$salt$hash).
  Verify() still accepts the legacy unsalted SHA-256 hex hash and a
  successful legacy auth transparently upgrades the stored hash, persisted
  by the view model on save/shutdown. Property renamed PasswordSHA256 ->
  PasswordHash.
- Constant-time comparison: CredentialComparer.FixedTimeEquals for the user
  name and password hash; both are evaluated fully (no && short-circuit).
- No information disclosure: POST failures return a generic message instead
  of ex.ToString(); detail is logged server-side only.
- Bind intent respected: ResolveListenerIp no longer mutates ListenerIp or
  silently falls back to all-interfaces for a specific configured address
  (auto/'?'/wildcards still bind all). A bad address now fails Start().
- CORS: removed the Access-Control-Allow-Origin '*' wildcard; common
  response headers centralized in WriteCommonHeaders.
- Prometheus: label values are escaped (EscapePrometheusLabel).

185 tests pass (was 167).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-02 10:35:13 -05:00

28 lines
905 B
C#

// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// Copyright (C) LibreHardwareMonitor and Contributors.
using LibreHardwareMonitor.Windows.WinUI.Services;
using Xunit;
namespace LibreHardwareMonitor.Windows.WinUI.Tests.Services;
public class CredentialComparerTests
{
[Fact]
public void FixedTimeEquals_EqualStrings_ReturnsTrue()
{
Assert.True(CredentialComparer.FixedTimeEquals("admin", "admin"));
}
[Theory]
[InlineData("admin", "Admin")]
[InlineData("admin", "root")]
[InlineData("admin", "administrator")]
[InlineData("", "x")]
public void FixedTimeEquals_DifferentStrings_ReturnsFalse(string left, string right)
{
Assert.False(CredentialComparer.FixedTimeEquals(left, right));
}
}