The CIS Oracle benchmark has just been updated quite a lot. The 8i stuff has been relegated to the original document and this has now been updated to version 1.2. The benchmark scoring tool has also been updated to the same level. CIS has also produced a new document for 9i and 10g - this is versioned at 2.0. The introduction of the 9i/10g document states that it is based on research conducted as part of the 10g program, OTN and various books - it would have been nice to see a list of references - Quite a lot of items are still clearly still derived from the earlier document for instance. The 8i document can confuse though as some stuff in there is still also in the 9i/10g document, that is do not assume that just because an issue is in the 8i paper to ignore it, it can still be relevant in 9i/10g. The 10g scoring tool is due in June 2005 according to the website. The Oracle security benchmarks can be downloaded from the CIS site.
These are both good documents though. I have not had time to read them yet to see what changes have been made since version 1.1. I will read through them both and make further comments here.