[1002] in linux-security and linux-alert archive
[linux-alert] Vulnerability in ALL linux distributions
daemon@ATHENA.MIT.EDU (bloodmask)
Tue Aug 13 13:19:14 1996
Date: Tue, 13 Aug 1996 06:49:55 +0200
From: bloodmask <bloodmask@mymail.com>
To: linux-security@tarsier.cv.nrao.edu
CC: linux-alert@tarsier.cv.nrao.edu
Reply-To: linux-security@tarsier.cv.nrao.edu
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Greetings folks,
Sorry we haven't released this thing sooner, due to testing we've
conducted to determine vulnerability on other systems besides Linux,
I've attached the officail release, Patch this up quick, and if I were
you, I wouldn't trust those old binaries to be secure anymore, this
thing has been with Linux since it's beggining, at it's high time this
"feature" is removed.
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Covin Security Releases:
(mount bufferoverflow exploit v1.0)
Tested operated systems: All current distributions of Linux
Affect: Local users on systems affected can gain overflow mounts syntax
buffer and execute a shell by overwriting the stack.
Affected binaries:
(/bin/mount and /bin/umount)
Workaround:
On all current distributions of Linux remove suid bit of /bin/mount and
/bin/umount.
[chmod -s /bin/mount;chmod -s /bin/umount]
Remarks:
For gods sake, how many more times are we gonna see this kind of problem?
It's been with Linux since it's very beggining, and it's so easy to
exploit. Similiar buffer overflow vulnerabilities have been found in
Linux distributions many times before, splitvt, dip, just to name a few
examples.
Any remarks, notes or other forms of feedback may be redirected to:
bloodmask@mymail.com
<------------------------------[ Cut here ]---------------------------------->
/* Mount Exploit for Linux, Jul 30 1996
[Mod: Exploit removed for linux-alert posting; it's already been posted
to linux-security and Bugtraq. This vulnerability is not new news, but
since exploits are now being published I'm posting this to linux-alert
for those that might not yet have gotten the news. --Jeff.]
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