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JWT must always be verified

Docs > Code Analysis > Static Analysis Rules > JWT must always be verified

Metadata

ID: csharp-security/jwt-verify

Language: C#

Severity: Warning

Category: Security

CWE: 347

Description

Preventing JWT validation may lead to unauthorized access. Make sure that tokens are always verified.

Learn More

CWE-347: Improper Verification of Cryptographic Signature

Non-Compliant Code Examples

using System.Xml;

class MyClass {
    public static void decodePayload()
    {
        JwtDecoder decoder = null;
        decoder.Decode(token, secret, false);
        decoder.Decode(token, secret, verify: false);
    }
}

Compliant Code Examples

using System.Xml;

class MyClass {
    public static void decodePayload()
    {
        JwtDecoder decoder = null;
        decoder.Decode(token, secret, true);
        decoder.Decode(token, secret, verify: true);
    }
}

How to use this rule

1
2
rulesets:
  - csharp-security     # Rules to enforce C# security.

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