Bugtraq mailing list archives

Re: Vulnerability in Oracle E-Business Suite Release 11i Applications Desktop Integrator


From: "David Howe" <DaveHowe () Bigfoot com>
Date: Fri, 25 May 2001 17:42:25 +0100

"Pavel Machek" <pavel () ucw cz> said:
Is it just me or does this sound like "security by obscurity"? What if I
sit down and write evil PAVEL11I.DLL that *looks* like production one
but dumps passwords as debug one?
Then you will have the passwords. however, if you can do this anyhow, you
can compromise *any* program you can sufficiently understand the interface
to (look for a dll that gets password information as an argument and rewrite
it to dump it elsewhere; I suspect there are a lot of these about)
there have also been a *lot* of programs where the patched version is only a
single file (dll or exe). in almost all cases, overwriting the updated file
with the old one will reenable the vunerability; this is to be expected with
the way windows handles DLLs, and there isn't much you can do about it. it
doesn't mean the patch is worthless though, as you shouldn't be allowing
random replacements of DLLs anyhow (particuarly ones to security-sensitive
programs).


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