Cloud Threat : Malicious Insiders

1.   A lesser known fact but a serious threat comes in form of a malicious insider ie the people who work for the organisation delivering the cloud services.In a typical organisation,one malicious insider can put the company in serious trouble and embarassment unless all are monitored by placing strict access controls and policies.Thus the threat multifolds in capacity of doing damage in case of companies who offer cloud models as service since all services and customers under a single management domain, combined with a general lack of transparency into provider process and procedure. For example, a provider may not reveal how it grants employees access to physical and virtual assets, how it monitors these employees, or how it analyzes and reports on policy compliance.To complicate matters, there is often little or no visibility into the hiring standards and practices for cloud employees. This kind of situation clearly creates an attractive opportunity for an adversary — ranging from the hobbyist hacker, to organized crime, to corporate espionage, or even nation-state sponsored intrusion. The level of access granted could enable such an adversary to harvest confidential data or gain complete control over the cloud services with little or no risk of detection. 

2.   Recommendations by CSA are put up below :

-  Enforce strict supply chain management and conduct a comprehensive supplier assessment.

-  Specify human resource requirements as part of legal contracts.

-  Require transparency into overall information security and management practices, as well as compliance reporting.

-   Determine security breach notification processes.

3.   Thanks CSA

Cloud Threat : Unknown risk profile

1.    The best thing all of us like and promote about cloud is that we have very little and reduced investment in software and hardware and also that the cloud user is able to focus on his core business.Like for a bank he should not be worried about what server should he buy or what storage should he provision...the bank should be able to focus on how to improve the banking procedures and profits.So this way the distraction is less for the prime user.But at the same time these benefits must be weighed carefully against the contradictory security concerns which are complicated by the fact that cloud deployments are driven by anticipated benefits, by groups who may lose track of the security requirements and musts.Would ever the Bank,in an case example,bother to know the Versions of software, code updates, security practices, vulnerability profiles, intrusion attempts, and security design ?I am sure no bank would do that once they have outsourced their worries to the Cloud.Details and Information with whom the same infrastructure is being shared becomes critical.One loose hole and u get compromised.Although this is not so easy....but we should know that the cyber criminals and hackers work more then us to keep all of us on toes and if successful then on Knees:-)

2. An old, 2009, real case example exploiting this specific threat is available at http://www.pcworld.com/article/158038/heartland_has_no_heart_for_violated_customers.html

3.  Recommendations by CSA :

-  Disclosure of applicable logs and data.

-  Partial/full disclosure of infrastructure details (e.g., patch levels, firewalls, etc.).

-  Monitoring and alerting on necessary information.

4.  Thanks https://cloudsecurityalliance.org

Cloud Threat : Insecure Interfaces and APIs

1.    How does a typical cloud user interacts,manages and configures his cloud ? This interaction is achieved with Cloud Computing providers exposing the user to a set of software interfaces or APIs.Thus the overall demand,settings,managing and all configuration is achieved using this interface and APIs only.Thus comes the aspect of security of handling and designing these interfaces and APIs.The security and availability of ANY cloud service is dependent upon the security of these basic APIs. From authentication and access control to encryption and activity monitoring, these interfaces must be designed to protect against both accidental and malicious attempts to circumvent policy.Not only this,but all the third parties often build upon these interfaces to offer value-added services to their customers. This introduces the complexity of the new layered API.The recommended remediation's vide CSA are mentioned below :

- Analyze the security model of cloud provider interfaces.

- Ensure strong authentication and access controls are implemented in concert with encrypted transmission.

- Understand the dependency chain associated with the API

2.   Thanks CSA : CLOUD SECURITY ALLIANCE

Cloud Threat : Shared Technology Issues

1.   When a computer processor is designed/manufactured...viz core 2 Duo or quad-core processor or for this purpose any processor,the processor doesn't know what will it be finally used for....I mean it may be used as a standalone machine or a server machine!!!Here's the issue..ie this processor was not meant to be used for cloud....but how does this matter?This matter because from the security point of view this processor was meant to support strong ISOLATION properties which is not the case in routine manufacturing.Only dependent on the hypervisors for the regular interface as discussed at an earlier post here.In cases of cloud we have to handle two platforms ..one is the OS running like windows or any other OS which comes along with inbuilt and already exploited vulnerabilities that keep getting patched(what about Zero day???) and the other is hypervisor vulnerabilities(just google on hypersvisor vulnerabilities and u see what's in store to get surprised).Both of these combined together would be deadly if not taken care of...because in the cloud world, reacting to a damage would be like taking some one to hospital after an accident or a bomb blast whereas it should be the other way round....remove all possibilities of the accident and ensure 100% secure Areas....latter being too tough to imagine in current environment.

2.   I read about this few years back when I was not very much clear on Cloud Computing concepts(though still naive but better then past!!! :-),there was an incident involving a hypervisor breach that was not widely publicized.Now if u know about XBox 360(is a video game console developed by Microsoft that competes with Sony's PlayStation 3 and Nintendo's Wii),it has an embedded hypervisor (surprisingly not Hyper-V),so it was some time in 2007, that there was a documented buffer overflow vulnerability in this hypervisor which could be exploited to gain access to the hypervisor mode and thus, to the entire system. Microsoft immediately released a patch for this.Now unlike regular Windows OS Option, patches are not optional for Xbox users. Thus,the patch was applied the next time a user connected to Xbox Live or installed a new game. Proof of concepts quickly appeared that exploited the hypervisor vulnerability as well as online documentation on how people have used the Xbox “hypervisor exploit” to crack their systems.(...got this info from http://blogs.gartner.com/neil_macdonald/2009/02/20/hypervisor-attacks-in-the-real-world/)

3.   Thus arises a need for strong secured compartments to ensure that the individual cloud users are not compromised in a manner that would ensure unmanageable losses in monitory terms as well as brand devaluation.The CSA gives the following point wise remidiation format for designing the policy boundaries to counter Shared Technology Issues : 

-  Promote strong authentication and access control for administrative access and operations.

-  Monitor environment for unauthorized changes/activity.

-  Enforce service level agreements for patching and vulnerability remediation.

-  Implement security best practices for installation/configuration.

-  Conduct vulnerability scanning and configuration audits.

Cloud Computing : The Darker Side

1.            Cloud computing…the word has generated enough buzz already across the corporate…the techies…the possibilities in future but all this comes at a backend question on security. If there is one thing that stops 80% of possible users using this powerful technology,it is only one aspect of it and that’s SECURITY….The question that comes in an auto mode to any possible cloud service enthusiast like how safe will be my data stored with them…even if its private who controls the key generation algorithms code…who is the single point of contact and so many…but perhaps evry question on this comes under one umbrella by the name of SECURITY…..

2.            So …are they right in thinking so?…when a technology that’s coming up so strong and so globally accepted  is it possible that the giant rise comes without an inbuilt security module? Actually it goes like right they are…the users…their fears stand right when they think about their data ownership.Released by https://cloudsecurityalliance.org,  in Dec 2010,they have identified few imminent threats in the sphere of cloud computing which they have meticulously covered under few major heads as identified below.These are not in the sequence of severity of threat as no seniority levels in this have been identified by the CSA.The original version of this paper by the Cloud Security Aalliance is at https://cloudsecurityalliance.org/topthreats/csathreats.v1.0.pdf

Threat  1: Shared Technology Issues

Threat  2: Insecure Interfaces and APIs

Threat  3: Unknown Risk Profile

Threat  4: Malicious Insiders

Threat  5: Data Loss or Leakage

Threat  6: Abuse and Nefarious Use of Cloud Computing

Threat  7: Account or Service Hijacking

3.            Each of these security threats, I plan to discuss further in other posts within the week or as I am able to spare time….read some from CSA and put it in the manner I understand that.Thanks https://cloudsecurityalliance.org

Cloud Computing & Virtualisation

 1.    Recently got an opportunity to give a presentation to a school/college audience about whats all the fuzz of Cloud Computing and Virtualization about?I tried building up the presentation from scratch to handling some secuity issues in the cloud.The copy is for you to see for reference : 

Cloud computing and Virtualisation

Cloud Computing : A dummies over view!!!! - 1

1.   Cloud computing is ALREADY the next stage in evolution of the Internet. The cloud in cloud computing provides the means through which everything from computing power to computing infrastructure,applications, business processes to personal collaboration — can be delivered to you as a service wherever and whenever you need.Cloud computing is offered in different forms:

- Public clouds

- Private clouds

- Hybrid clouds, which combine both public and private

2.   In general the cloud is similar to fluid that can easily expand and contract. This elasticity means that users can request additional resources on demand and just as easily deprovision (or release) those resources when they’re no longer needed. This elasticity is one of the main reasons individual, business, and IT users are steadily moving to the cloud.In the traditional data center it has always been possible to add and release resources but we all know how much effort generally goes in. 

3.   This doesn’t mean that all applications, services, and processes will necessarily be moved to the cloud. Many businesses are much more cautious and are taking a hard look at their most strategic business processes and intellectual property to determine which computing assets need to remain under internal company control and which computing assets could be moved to the cloud.

4.   The cloud itself is a set of hardware, networks, storage, services, and interfaces that enable the delivery of computing as a service. Cloud services include the following :

- IaaS(Infrastructure as a service) : Infrastructure as a Service is a provision model in which an organization outsources the equipment used to support operations, including storage, hardware, servers and networking components. The service provider owns the equipment and is responsible for housing, running and maintaining it. The client typically pays on a per-use basis.

- PaaS(Platform as a Service) : Platform as a Service (PaaS) is a way to rent hardware, operating systems, storage and network capacity over the Internet. The service delivery model allows the customer to rent virtualized servers and associated services for running existing applications or developing and testing new ones.

- SaaS ( Software as a Service) : Software as a Service (SaaS) is a software distribution model in which applications are hosted by a vendor or service provider and made available to customers over a network, typically the Internet.

5.    Besides these services,new delivery models such as Crimeware as a Service are also building up in the parallel...for that just google else from the name u can make out it is crime ware as a service as I mentioned in one of the posts in my blog about two years back here.....

6.   Now that goes as the most simple intoruction for a cloud computing over view...the main part starts now...how about the security aspects for each of these...that will be in slightly more detail in subsequent posts...

7.    Thanks http://searchcloudcomputing.techtarget.com

6$ is all to shut down a Cloud Client site!!!!

1.    CaaS,as mention at an earlier blog post here,has come up with a new success(or is it failure?) story.Now this goes like this.....invest $6 and take down any client's server with the help of Amazon's EC2 cloud infrastructure!!!!!  

2.    The cloud-based denial-of-service attack was part of a presentation : Cloud Computing, a Weapon of Mass Destruction? An onsite demo during the presenatation by Bryan and Anderson involved entering a name and credit card number, the experts created a handful of virtual server instances on Amazon's EC2. They started with only three virtual servers, uploaded their prototype attack tool, called Thunder Clap, scaled up to 10 servers, and then took their client's company off the Internet.Security consultants David Bryan of Trustwave and Michael Anderson of NetSPI said that they encountered nothing to stop them, like no special bandwidth agreements and no detection mechanisms for servers taking malicious actions. Their Thunder Clap program uses cloud-based services to send a flood of packets toward the target company's network. They reported that they can control the software directly or through a command left on a social network.Bryan and Anderson launched the attack to test their client's network, a small business that wanted its connectivity tested. According to DarkReading, Bryan said, "A threat agent could potentially run extortion schemes against a company by attacking for a couple of hours -- and then telling the company that, if you don't pay me, then I will attack you again." Amazon reportedly failed to reply to complaints by the security consultants.

3.    This can provision customised Botnets availability on rent, giving "would-be attackers a criminal 'cloud' from which to buy services."......seems like it is still tooo early to rely 100% on CLOUDS!!!!!!

4.     More on this here.......

CaaS : CRIME WARE AS A SERVICE at offer now

1. Bhaigiri...Supari..khokha...and similar terms have been till date used in reference with the crime world...now come to terms like Software as a Service(SaaS), Hardware as a service(HaaS) ,Platform as a service(PaaS) etc and the list is all set to become endless with cloud computing...whats the relation here?????..it goes 2 merge these two separate worldsie CRIME & IT....the earlier terms mentioned pertain to the world of crime and the later once refer to the vast possibilities and power knocking the users....thus refers to Crimeware as a Service(CaaS)

2. The controverting side is the world of hackers & cyber criminals who seem to exploit their technical tools to great effect. However, even for newbie hackers eager to join this world don’t need to possess the required levels of technological expertise. CaaS (Crimeware-as-a-Service) pulled out of some distant Cloud can provision the necessary tools, be they Virus/Worm Creation Kits, Denial of Service (DoS) applications or more simply estabilishing a botnet.A recent research proved they can be just a mouse click away! Kits were easily located to build a variant of ‘Indra’ Malware, as well as a manifestation of Badboy , providing the user with the power to create their own version to send on to their targets.

3. Granted these are not examples of cutting-edge malware, but they do however still pose a threat to the unprepared and unsuspecting organisation. As amazing as it may seem, even today there are large organisations who permit access to sites, and allow the download of Malware Construction Kits – and even more worrying, there are still pockets of companies who do not maintain their anti-virus or patches in an up-to-dtate condition.

4. Crime is going to be a inherent part in the cyber world and the cause of worry is that unlike army and mil est in the real world...no concrete effort and source is there to resist these evil forces.We are still acting to a situtaion when need of the hour is to be more then PROACTIVE.....

5. Thanks http://www.infosecurity-magazine.com/