On Tue, Sep 30, 2014 at 12:30:57PM +0200, "Łukasz \"Cyber Killer\" Korpalski" wrote:
W dniu 30.09.2014 o 11:55, Lodewijk andré de la porte pisze:
Heartbleed was a memory leak that eventually, after carefully calculated exploiting, can lead to a remote root.
Shellshock depends on a lot of environmental details, but is possible little more than a hard to reach shell with elevated permissions.
I guess heartbleed was actually worse. Who runs webscripts and stuff in root? That's really foolhardy. But using OpenSSL ... We usually thought it good practice!
Agree, heartbleed was a bigger problem, though I think I know why so many people panic because of this.
My theory is, with heartbleed most folks thought they were unaffected, cause not many noob people run a webserver. But with shellshock they can test this on their own machine, with just 1 line of code and see the "vulnerable" message, so suddenly this is a big deal for them.
So, don't panic & stay cool, unless you have some badly configured servers or have a habit of running everything on your workstation without checking. But then you got bigger problems than this ;-).
Shellshock affects clients, including admins :) Over DHCP you get instant root. Over qmail local delivery, without any interaction you get the lusers $HOME and /var/mail and having in mind the state of current kernels the road to euid 0 is not very long. It might affect some suid progies too. AFAICT HB didn't allow code execution, just reading memory.