Re: Multiple XSRF in DD-WRT (Remote Root Command Execution)
pUm schrieb:
this is no security flaw since you must be already logged in within
the webinterface of dd-wrt. otherwise this here will not work. we
already fixed this issue in our sourcetree
as additional information. this is no dd-wrt specific issue. all other
firmware like openwrt etc. would suffer from it too.
in fact. just a plain POST to a authenticated dd-wrt session. without
beeing logged in locally it would not have any effect
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oh god - you dd-wrt people sucks so much. its unbelievable in which
way you are handling security advisories. if you would be able to make
a post without authentication it would be much worst. I would
recommend to read www.owasp.org
this is why a authentication is required for every POST
another example for the bad security work of the dd-wrt guys are one
this forum post:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=35783&postdays=0&postorder=asc&start=0
bitmage discovered that in every fresh release and every custom
firewall two other rules are added in front of all.
the rules will allow every service on the dd-wrt router from the ip
194.231.229.20 and from the ip 212.65.2.116
this is removed since a long time and these both ip did not exist. i
explained also in the forum how this problem occured
some workarounds exist, I didnt test any of them, because dd-wrt isnt
trustworth anymore for me. I can confirm this flaw in the latest
stable vpn release.
for sure you can. nobody informed me about this issue. it was posted
without a notice to the developer and this sucks much more
as i already told. i'm not able to provide a stable fixed version in a
good timeframe.
please note the workarounds from the main developer from dd-wrt:
"even i see no reason for this. these ip addresses arent valid
anymore. it seems that chris implemented this for a customer. i
removed it now" (they are still in the default install image)
"nvram unset ral
nvram commit "
"there is no security hole. both ip's are not active anymore and
obsolete since a long time. "
"i will lock this thread now. a new release is scheduled soon (within
this or next week), but you cannot force me to release buggy code
based on the current internal tree.thats my last statement on this
topic" (Posted: Tue Aug 19, 2008 10:57 pm)
I recommend everyone to not use dd-wrt anymore, at least as long as
they didnt change their politics and stops talking bullshit "there is
no security hole"
fore sure its no security hole. it would be one if you can get into the
router without authentication
and consider that i reacted fast enough to fix it in our sourcecode.
--
Mit freundlichen Grüssen / Regards
Sebastian Gottschall / CTO
NewMedia-NET GmbH - DD-WRT
Firmensitz: Wormser Straße 5 - 7, 64625 Bensheim
Registergericht: Amtsgericht Darmstadt, HRB 25473
Geschäftsführer: Peter Steinhäuser, Christian Scheele
http://www.dd-wrt.com
email: s.gottschall@xxxxxxxxxx
Tel.: +496251-582650 / Fax: +496251-5826565