How should cache handling be accomplished to minimize the ability of the attacker to deliver a payload through the cache?
Caching is a mechanism applied in the computing process to enhance the speed of delivery through storing the backing up a copy of the item requested so that at the end one can access the cached copy rather than getting the original one. Different types of aches assist in the delivery of information. One is the cache server, it is the type dedicated to caching the web resources, they are located in different geographical local so that when the user requests the response do not travel much far. Bowser cache, the browser cache makes the files easily assessable since the files are stored in the local caches and they don’t need to be downloaded. Again, there is memory cache it uses the applications in the data delivery, memory cache store data in static RAM(SRAM). The Disk cache is also making data more accessible especially when using the applications. Like any other data, cache handling is very crucial in order o minimize the attacks that can interfere with the data.
Application is defense, for the proper handling of the cache right validation must be done. The validation of every requested reputation must be monitored properly to ensure only the authenticated data that is allowed to. Since the attackers might posses the device information or the certificate it is important to reject any unfamiliar request hence in the process the attacker cannot get to the back of the data hence the payload will not experience threats. Although software testing can be huge to this scope, fuzz could work out, it is quality assurance techniques that can be used to detect the security leaks in the software or loopholes that can allow the threats to attack the systems. In caching handling the fuzz inputs should be applied so that they can detect the malformed messages that emanate from the reputation processing.
When dealing with reputation services it is important to control the validity of the queries. Once the reputation is not valid in the cache because it has changed, it should be removed so that the query will produce the updated reputation for the item since the cache is the link between the trust boundaries in the back-end retrieving. The sequence and series should follow as a device ask reputation for an item, front end ask for a reputation from reputation processor, reputation then its retuned to the device, then place at the cache for retrieval, new data is detected in the item, in the back-end the item reputation changes, the change catalysis the reputation processor to look the cache whether the reputation is there if it is still in the cache the reputation is deleted commanding front end to refresh the next query for the reputation. The sequence is aimed at reducing the malicious content that might be stuffed within the cache that can cause harm to the back end.
