Re: Seen on BugTraq: XXE (Xml eXternal Entity) attack
Rick Jelliffe wrote, > > Sure, but isn't that tantamount to agreeing with, > > > > Suggested fix: > > Most XML parsers allow their user to explicitly specify external > > entity handler. In case of untrusted XML input it is best to > > prohibit all external general entities. > > > > because your ACL will effectively be whitelisting your *trusted* > > sources. > > ??? "It is best to prohibit" is not the same thing as "allow access > control lists". Read it carefully: "In case of *untrusted* XML input it is best ...". The qualifier is important. To all intents and purposes a list which specifies trusted sources is an ACL. Cheers, Miles
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