Client server security threats
- 1. Rahul kundu 6th sem, IT
- 2. Client-server security threats can be divided into 2 major categories:- a) Threats to client b) Threats to server
- 3. Client threats mostly arise from malicious data or code, malicious code refers to viruses, worms,Trojan horses & deviant.
- 4. A computer virus is a program or piece of code that is loaded onto your computer without your knowledge & runs against your wishes. Virus can also replicate themselves.
- 5. A program that performs a desired task but also performs unexpected function.
- 6. It is a self-replicating program that a self continued & does not need any host program to execute. Clients must scan for malicious data & executable program fragment that are transferred form the server to the client.
- 7. Unauthorized eavesdropping Denial of services(Dos) Modification of incoming data packets
- 8. Watching data or information as it travels through the internet. Hackers can use to trap username & unencrypted password sent over that network.
- 9. A denial of service attack is an effort to make one or more computer system unavailable. It is typically targeted at web servers but it can also be used on mail server, name servers & any other type of computer system. The 2 most common types of these attacks are:- service overloading message overloading
- 10. Servers are vulnerable to service overloading. Dos will occur due to overloading of the server.
- 11. Message overloading will occur when someone sends a very large file to the message box of server at every few seconds. The message box rapidly grows in size & begins to occupy all space on the disk & increase the number of receiving process on the recipient’s machine & causing a disk crash.
- 12. It is an integrity threats that involve modifying a message packet or destroyed the message packet. In many cases, packet information not only be modified, but its contents may be destroyed before legitimate users can see them.