Bugtraq mailing list archives

Re: core symlinks

From: pluvius () dragon achilles net (pluvius)
Date: Thu, 25 Aug 1994 09:42:14 -0400 (EDT)

      It's been mentioned before that core dumps on
some systems may fallow symlink and that this can be used
to overwrite any file. I was wondering if anyone knows which
OS's and versions behave this way.


 Werd a1. I've tried this on the following systems

SunOS 4.1.3_U1
HP-UX 9.0
Linux 1.1.something

 and the basic story is that at the end of all the links, if you do not
have permission, it will not dump core... however if you do have 
permission to write to that file (ie: core -> foo -> bar -> /tmp/mycore)
it will dump it.

Current thread:

nfsbug Forrest Aldrich (Aug 23)
- Re: nfsbug Jonathan M. Bresler (Aug 24)
- core symlinks Aleph One (Aug 24)
  - Re: core symlinks Bennett Todd (Aug 24)
    - Re: core symlinks Greg Woods (Aug 25)
    - Re: core symlinks Terje Normann Marthinussen (Aug 26)
  - Re: core symlinks pluvius (Aug 25)
  - Re: core symlinks Thomas D. Nadeau (Aug 25)
  - Re: core symlinks Thomas D. Nadeau (Aug 25)
- <Possible follow-ups>
- Re: nfsbug Steve Salvini (Aug 25)
  - Re: nfsbug Christopher Klaus (Aug 25)
    - Re: nfsbug Rafi Sadowsky (Aug 25)
  - root permissions Aleph One (Aug 25)
    - Re: root permissions KevinTX (Aug 25)
    - Re: root permissions Paul Robinson (Aug 26)
    - Re: root permissions Peter Wemm (Aug 26)