Re: perl-cgi hole in UltimateBB by Infopop Corp.

[capps () SOLARECLIPSE NET (Charles Capps)]

For the record, the latest versions of the UBB (Freeware version '2000', and
a new release of licensed version 5.43d) contain fixes for this bug as of
yesterday.  The fix has also been posted in this thread:
http://www.scriptkeeper.com/ubb/Forum16/HTML/000814.html

--
Charles Capps

----- Original Message -----
From: H D Moore <secure () SECUREAUSTIN COM>
To: <BUGTRAQ () SECURITYFOCUS COM>
Sent: Monday, February 14, 2000 12:26 PM
Subject: Re: [BUGTRAQ] perl-cgi hole in UltimateBB by Infopop Corp.

> Hi,
>
> I am the administrator for a site running the commercial version of UBB,
> the problem exists there as well.  The faulty code is in ubb_library.pl:
>
> if ($ThreadFile =~ /\d\d\.[m|n|ubb|cgi]/) {
>
> I don't actually know the original line number, as we hacked up our copy
> to use MD5 password hashes versus clear-text and added many new
> logging/security features to curb abuse.  Since all of the modifications
> to the code were paid for by my client, I may not be able to release
> them to the public...
>
> -HD
>
> "Sergei A. Golubchik" wrote:
> > Hello.
> > Browsing some site, I found that their forums were based not on home-
> > made scripts, but rather commercial software product. Hey, said I to
> > myself, remember those story about pcweek hack ? They use commercial
> > package photoads. Let's look what that Ultimate Bulletin Board by
> > Infopop is.
> >
> > I grabbed freeware version from http://www.ultimatebb.com and
> > after 10-minutes grepping found those lines:
> >
> > ubb_library.pl:901-902
> >           if ($ThreadFile =~ /\d\d\d\d\d\d\.ubb/) {
> >           open (MESSAGE, "$ForumsPath/Forum$number/$ThreadFile");
> >
> > (notice? not /^\d\d\d\d\d\d\.ubb$/. What did the author think about
while
> > writing it ? Girls ?)
> >
> > And the $ThreadFile takes its value directly from the hidden (hmm!)
> > field `topic'.