robsware

The vulnerability is Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

csharp
class VulnerableCounter
{
    private int count;

    public void Increment()
    {
        count++;
    }

    public int GetCount()
    {
        return count;
    }
}

vulnerable code

vulnerable code To fix the vulnerability, we need to synchronize the access to the shared resource (in this case, the `count` variable) to ensure that no two threads are executing the Increment or GetCount methods simultaneously. This can be accomplished in C# using the `lock` statement. In the fixed code example, we introduce a new object `countLock` which acts as a synchronization mutex. The `Increment` and `GetCount` methods are both modified to first acquire a lock on `countLock` before performing any operations on `count`. This ensures that all access to the `count` variable is serialized and prevents concurrent execution on the shared resource.

N/A