Protocol software component and test apparatus

Vulnerability testing

... and receive messages 102, 105, 103, 107 via a network 120 using an asynchronous computer communication protocol. The system may include two or more buffers, such as an ingress buffer (347, Figure 3) and an egress buffer (349, Figure 3) and include a memory accessible to the processor. The memory may include first node instructions 170 that are executable by the processor to implement one or more functions of a first node. The memory may also include one or more script callbacks. The script callbacks may be executable by the processor to at least one of provide: the first content to a test script to be modified before the first content is provided to the first node instructions from the ingress buffer, e.g. input script callback 133, and provide the second content to the test script to be modified before the outgoing message is provided to the egress buffer, e.g. output script callback 137. The arrangement may be employed in a system designed to analyse a device under test 110 for vulnerabilities ...