Ensure cookies have the secure flag

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Metadata

ID: csharp-security/cookie-http-only

Language: C#

Severity: Warning

Category: Security

CWE: 614

Description

Cookies must only be used for HTTP connections. Otherwise, client-side scripts can access cookies and compromise the user security.

Learn More

CWE-1004: Sensitive Cookie Without ‘HttpOnly’ Flag

Non-Compliant Code Examples

class MyClass {
    public static void setSecureCookie()
    {
        HttpCookie myCookie = new HttpCookie("my cookie");
        Console.WriteLine("Hello World");
        myCookie.HttpOnly = false;
    }
}

class MyClass {
    public static void setInsecureCookie()
    {
        HttpCookie myCookie = new HttpCookie("my cookie");
        Console.WriteLine("Hello World");
        myCookie.HttpOnly = false;
    }
}