CVE-2023-35391: .NET Information Disclosure Vulnerability

CVE-2023-35391 · Severity: low · CVSS 3.1 · Published 2023-08-11

.NET Information Disclosure Vulnerability

Technologies: Microsoft.AspNetCore.SignalR.StackExchangeRedis (NuGet). Vendors: NuGet.

Quick answers

Is CVE-2023-35391 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2023-35391 being exploited in the wild.
How severe is CVE-2023-35391?
Low severity, with a CVSS score of 3.1, published 11 August 2023.
Which products and versions are affected?
Microsoft.AspNetCore.SignalR.Redis (NuGet) ECOSYSTEM:introduced=0,fixed=1.0.40; Microsoft.AspNetCore.SignalR.StackExchangeRedis (NuGet) ECOSYSTEM:introduced=7.0.0,fixed=7.0.10.
Is there a fix for CVE-2023-35391?
Yes. Microsoft.AspNetCore.SignalR.Redis (NuGet): upgrade to 1.0.40 or later; Microsoft.AspNetCore.SignalR.StackExchangeRedis (NuGet): upgrade to 7.0.10 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2023-35391?
Check whether you run Microsoft.AspNetCore.SignalR.Redis (NuGet) or Microsoft.AspNetCore.SignalR.StackExchangeRedis (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Microsoft.AspNetCore.SignalR.Redis (NuGet): upgrade to 1.0.40 or later
    dotnet add package Microsoft.AspNetCore.SignalR.Redis --version 1.0.40
  • Microsoft.AspNetCore.SignalR.StackExchangeRedis (NuGet): upgrade to 7.0.10 or later
    dotnet add package Microsoft.AspNetCore.SignalR.StackExchangeRedis --version 7.0.10

Affected products

  • Microsoft.AspNetCore.SignalR.Redis (NuGet) ECOSYSTEM:introduced=0,fixed=1.0.40
  • Microsoft.AspNetCore.SignalR.StackExchangeRedis (NuGet) ECOSYSTEM:introduced=7.0.0,fixed=7.0.10

Identifiers

  • CVE-2023-35391
  • GHSA-j8rm-cm55-qqj6

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