On Tue, Sep 30, 2014 at 02:24:44PM +0200, rysiek wrote:
OHAI,
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.
Yeah, but that means the danger level is somewhere on the "client-side root" side, rather than "server-side root".
Client side and server side are related. Would you be comfortable to admin a server from a rooted client? (I can offer you free shell to ssh out of it ;).
AFAICT HB didn't allow code execution, just reading memory.
"Just" potentially reading plaintext passwords straight off of RAM, SSL/TLS certificates, GPG keys, etc., potentially (and demonstrably!) giving one a way not only to take over the given server, but to decrypt past saved communications with a given host, if the host used SSL without perfect forward secrecy.
Shellshock is more of a "personal client hygiene" kind of bug (a bad one, but still); HB was "we're *all* affected and fucked, change passwords NOW and hope for the best".
If I had a budget for buying sploits, I would pay much more for shockshell than for HB, might be wrong.
-- Pozdr rysiek