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[Full-disclosure] From kernel memory disclosure to privilege escalation: when and how?
- To: full-disclosure@xxxxxxxxxxxxxxxxx
- Subject: [Full-disclosure] From kernel memory disclosure to privilege escalation: when and how?
- From: Kevin Johnson <kevjohnson71@xxxxxxxxx>
- Date: Thu, 23 Jun 2011 02:53:21 -0700 (PDT)
Hello!
Could somebody write what threats there are when kernel memory disclosure is
found?
I mean not along with another bug (since kmem disclosure could lead to some
interesting pointers addresses and values, etc), but only itself!?
I guess it could lead to /etc/shadow disclosure, if some suid programs
accessing it would be running in the background (chsh, for example). Is it
correct?
BTW, when chsh and other programs-accessing-shadow-file are running, where do
they store the /etc/shadow content? On the kernel stack in it's thread_union,
or somewhere else?
So, besides /etc/shadow disclosure, are there any significant places, where
kernel memory disclosure could lead to very likely privilege escalation?
Thank you.
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