Recently, Cloud computing is most powerful research area because of its flexibility and cost efficiency. The environment provides dynamic, easily scalable services. Although cloud computing promises to the organization as well as consumers to make life much easier, still it has considerable level of security issues. When data is transferred between the client and server, then security is a great concern. Efficient model should be implemented in the cloud environment to make it secure from illegitimate users. So that cloud security is becoming a important recent discussion in the IT sector. This paper describes a survey on different security issues of cloud computing and the possible solution for remediation.