### SCS0024 - View State MAC Disabled
The `enableViewStateMac` is disabled in configuration file. (This feature cannot be disabled starting .NET 4.5.1)
#### Risk
The view state could be altered by an attacker.
#### Vulnerable Code
```xml
<system.web>
   ...
   <pages [..] enableViewStateMac="false" [..]/>
   ...
</system.web>
```
#### Solution
The default value is secure - `true`.
Or set it explicitly:
```xml
<system.web>
   ...
   <pages [..] enableViewStateMac="true" [..]/>
   ...
</system.web>
```
#### References
[CWE-554: ASP.NET Misconfiguration: Not Using Input Validation Framework](https://cwe.mitre.org/data/definitions/554.html)  
[MSDN: pages Element (ASP.NET Settings Schema)](https://msdn.microsoft.com/en-us/library/950xf363(v=vs.100).aspx)  