Folks, It seems that after applying the IFRAME ExecCommand patch from MS9-042, IE 5.0 is again vulnerable to Georgi Guninski's cross-frame bugs. You can visit his page at <http://www.nat.bg/~joro/read2.html> to test. I tested this on 2 NTW 4.0 SP5 machines with IE 5.0 and all released fixes. Georgi also confirmed his test machine is vulnerable again after this patch. There are three IE5 fixes that replace MSHTML.DLL: MS99-012 04/21/99 "MSHTML Update" (3 fixes mentioned below) MS99-040 10/12/99 "Download Behavior" MS99-042 10/15/99 "IFRAME ExecCommand" The bulletin for MS99-042 states that it includes the MS99-040 fix for "Download Behavior" but it doesn't mention MS99-012 and its patch, which fixed cross-frame, IMG SRC, and untrusted scripted paste bugs. The untrusted scripted paste bug seems to remain fixed. I don't know where an IMG SRC exploit test is, so I couldn't check it. I emailed Microsoft Support several times asking if MS99-042 covered MS99-012, and they were unable to give me an answer. I also have a question about the IE 5.0 ImportExportFavorites vulnerability. After applying the ImportExportFavorites patch from MS9-037, the only difference I see is that it asks the user if they want to export or import their Favorites. In the bulletin's FAQ, it says "It eliminates the ImportExportFavorites vulnerability by only allowing the ImportExportFavorites() method to create icon files, and by restricting what folders they can be written to." Do you find that to be accurate? Do you know what folders saving is restricted to? -Francis Favorini
This archive was generated by hypermail 2b30 : Fri Apr 13 2001 - 15:09:07 PDT