Exploit code still residing in Internet caches
October 13, 2006
Internet security company Finjan warns that Internet caches used by the major search engines and most Internet service providers still contain a lot of malicious code believed to have been removed a long time ago. The security firm says that the caching servers used by search engines such as Yahoo and Google hold potential exploit code that could be used by third parties to carry out an Internet attack.
"At any given point in time, it is possible that many storage and caching servers could unintentionally become the largest legitimate storage venue for malicious code," said Yuval Ben-Itzhak, chief technology officer at Finjan.
Internet caches are created from copies of Web pages made by search engines which then sort, compile and index the information on those pages.
Even after Web sites containing exploit code is removed, the individual pages indexed by search engines will remain on the web within those cache servers.
Finjan said that it has given the details of its findings to several search engine companies and ISPs, and is in discussions on ways to solve this growing security problem.
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