IJESRTJOURNAL OF ENGINEERING SCIENCES & RESEARCH

Cloud computing technology is a new concept of providing dramatically scalable and virtualized resources, bandwidth, software and hardware on demand to consumers. Consumers can typically requests cloud services via a web browser or web service. Cloud computing is model which uses combine concept of “software-as-a-service” and “utility computing”, provide convenient and on-demand services to requested end users. Security in Cloud computing is an important and critical aspect, and has numerous issues and problem related to it. Cloud service provider and the cloud service consumer should make sure that the cloud is safe enough from all the external threats so that the customer does not face any problem such as loss of data or data theft. This paper introduces the parameters that affect the security of the cloud then it explores the cloud security issues such as data, privacy, Infected application and security Issues. There are four cloud security problems, which are XML Signature Element Wrapping, Browser Security, Cloud Malware Injection Attack and Flooding Attacks, and also give the possible countermeasures. This also describes the security challenges in Software as a Service (SaaS) model of cloud computing.