gdm-guest-session package lets users login and then switch over to an anonymous guest account. This was allowing people to bypass user specific filters and time restrictions.
I removed that stupid package. On Sat, Oct 9, 2010 at 9:59 PM, Royce Souther <[email protected]> wrote: > I have been trying to login as guest but I have not been able to find out > how users are doing this. > > > On Sat, Oct 9, 2010 at 9:56 PM, Royce Souther <[email protected]> wrote: > >> I double checked there is no guest account but I did a grep for guest in >> /etc/ and found that a temporary guest account was created then deleted. >> >> *r...@amdx4home[~] #grep guest /etc/* >> /etc/at.deny:guest >> /etc/bash_completion:# of Ubuntu's (and Debian's? :() inner >> weirdness? :) -- David (hanska-guest) >> grep: /etc/blkid.tab: No such file or directory >> /etc/group-:guest:x:123: >> /etc/gshadow-:guest:!:: >> /etc/passwd-:guest:x:115:123:Guest,,,:/tmp/guest-home.EUt4Kx:/bin/bash >> /etc/shadow-:guest:*:14892:0:99999:7::: >> * >> Check the times for the files* >> r...@amdx4home[~] #ll /etc/passwd* >> -rw-r--r-- 1 root root 1.9K 2010-10-09 21:09 /etc/passwd >> -rw------- 1 root root 2.0K 2010-10-09 20:30 /etc/passwd- >> * >> >> Some how users have found a way to automatically create a guest account >> that is deleted when they log out. >> I am continuing to search Google but so far I have not found any >> information about this great new Ubuntu feature that lets users bypass the >> security system as setup by the root user. >> >> >> >> On Sat, Oct 9, 2010 at 9:16 PM, Royce Souther <[email protected]> wrote: >> >>> I just found out that anonymous users can login to Ubuntu system even if >>> they do not have an account. They login to Ubuntu 9.10 as user *guest*but >>> there is no such account. >>> >>> What the hell? This is a very bad security hole. >>> How is this possible? >>> How can I stop it? >>> >>> -- >>> Easy, fast GUI development. >>> http://PerlQt.wikidot.com >>> >> >> >> >> -- >> Easy, fast GUI development. >> http://PerlQt.wikidot.com >> > > > > -- > Easy, fast GUI development. > http://PerlQt.wikidot.com > -- Easy, fast GUI development. http://PerlQt.wikidot.com
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