Re: Linux kernel source archive vulnerable

[hadmut () danisch de (Hadmut Danisch)]

On Fri, Sep 08, 2006 at 11:44:02AM +0100, Lee Ball wrote:
> Sorry to add my 2 pence worth but I noticed that Raj ran his command as
> a normal user and you Hadmut have ran yours as root. Isn't it going to
> be ok as the directories above these world writeable files aren't
> writeable/readable by a non-superuser?


Actually it wasn't my own computer where I found the problem. I was
performing some security checks on a customer machine and found these
open directories, so it was someone else's machine.


No, this is not correct. Even if /usr/src is not world writable, you
can write into those subdirectories and files. 

Just think about it: Otherwise you could not write any file into your
home directory since /home is not world writable.

regards
Hadmut

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/