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Date: 17 Mar 2003 20:22:37 -0000
From: "Grégory" Le Bras <gregory.lebras@...urity-corporation.com>
To: bugtraq@...urityfocus.com
Subject: [SCSA-010] Path Disclosure & Cross Site Scripting Vulnerability
in MyABraCaDaWeb
________________________________________________________________________
Security Corporation Security Advisory [SCSA-010]
________________________________________________________________________
PROGRAM: MyABraCaDaWeb
HOMEPAGE: http://www.webmaster-mag.net/
VULNERABLE VERSIONS: v1.0.2 and prior
________________________________________________________________________
DESCRIPTION
________________________________________________________________________
MyABraCaDaWeb is an other Content Management Systems like PHP-Nuke
More informations at :
http://www.webmaster-mag.net/?module=pages@@myabracadaweb_pr (In French)
DETAILS & EXPLOITS
________________________________________________________________________
¤ Path Disclosure :
Some vulnerabilities have been found in MyABraCaDaWeb which allow attackers
to determine the physical path of the application.
This vulnerability would allow a remote user to determine the full path to
the web root directory and other potentially sensitive information.
This vulnerability can be triggered by a remote user submitting a
specially crafted HTTP request, such as a request for an invalid Admin ID.
Exploits :
http://[target]/index.php?IDAdmin=test
http://[target]/index.php?base=test
http://[target]/index.php?tampon=test
http://[target]/index.php?SqlQuery=test
etc...
---------------------------------------
¤ Cross Site Scripting :
A Cross-Site Scripting vulnerability have been found in MyABraCaDaWeb which
allow attackers to inject script codes into the search script and use
them on clients browser as if they were provided by the site.
This Cross-Site Scripting vulnerability are found in the page for searching
keyword.
An attacker can input specially crafted links and/or other malicious
scripts.
Exploit :
http://[target]/index.php?module=pertinance&ma_ou=[modules]&ma_kw=
[hostile_c
ode]
The module could be : "annuaire2liens"
The hostile code could be :
[script]alert("Cookie="+document.cookie)[/script]
(open a window with the cookie of the visitor.)
(replace [] by <>)
Vulnerable code "header.php" :
####################################################################
//---Creation du rapport
$vtp_p = new VTemplate;
$tpl_p = $vtp_p->Open("modules/pertinance/tpl/rapport.tpl");
$vtp_p->addSession($tpl_p,"rapport");
$vtp_p->setVar($tpl_p,"rapport.ma_kw",$ma_kw);
$vtp_p->setVar($tpl_p,"rapport.NbMotCle",$NbMotCle);
$vtp_p->setVar($tpl_p,"rapport.T3",$T3);
$vtp_p->setVar($tpl_p,"rapport.NbLiens",$NbLiens);
if(quel_groupe() == 4){
$sql = htmlentities($sql);
$sql = addslashes($sql);
$vtp_p->addSession($tpl_p,"sql");
$vtp_p->setVar($tpl_p,"sql.sql",$sql);
$vtp_p->closeSession($tpl_p,"sql");
}
$vtp_p->closeSession($tpl_p,"rapport");
$Raport = $vtp_p->Display($tpl_p,0);
####################################################################
SOLUTIONS
________________________________________________________________________
¤ Path Disclosure :
No solution for the moment.
¤ Cross Site Scripting :
You can found a patch at the following link :
http://www.security-
corporation.com/download/patch/MyABraCaDaWebv1.0.2XSSpat
ch.zip
For example use this code in "header.php":
####################################################################
//---Creation du rapport
# BugFix by Gregory LEBRAS www.security-corporation.com
$ma_kw =
eregi_replace("content-disposition:","!content-disposition:!",$ma_kw);
$ma_kw = eregi_replace("include","!include!",$ma_kw);
$ma_kw = eregi_replace("\<\?","<.?",$ma_kw);
$ma_kw = eregi_replace("\?\p\h\p",".?php",$ma_kw);
$ma_kw = eregi_replace("\?\>","?.>",$ma_kw);
$ma_kw = eregi_replace("<script>","<.script>",$ma_kw);
$ma_kw = eregi_replace("</script>","<./script>",$ma_kw);
$ma_kw = eregi_replace("javascript","!javascript!",$ma_kw);
$ma_kw = eregi_replace("embed","!embed!",$ma_kw);
$ma_kw = eregi_replace("iframe","!iframe!",$ma_kw);
$ma_kw = eregi_replace("refresh","!refresh!",$ma_kw);
$ma_kw = eregi_replace("onload","!onload!",$ma_kw);
$ma_kw = eregi_replace("onstart","!onstart!",$ma_kw);
$ma_kw = eregi_replace("onerror","!onerror!",$ma_kw);
$ma_kw = eregi_replace("onabort","!onabort!",$ma_kw);
$ma_kw = eregi_replace("onblur","!onblur!",$ma_kw);
$ma_kw = eregi_replace("onchange","!onchange!",$ma_kw);
$ma_kw = eregi_replace("onclick","!onclick!",$ma_kw);
$ma_kw = eregi_replace("ondblclick","!ondblclick!",$ma_kw);
$ma_kw = eregi_replace("onfocus","!onfocus!",$ma_kw);
$ma_kw = eregi_replace("onkeydown","!onkeydown!",$ma_kw);
$ma_kw = eregi_replace("onkeypress","!onkeypress!",$ma_kw);
$ma_kw = eregi_replace("onkeyup","!onkeyup!",$ma_kw);
$ma_kw = eregi_replace("onmousedown","!onmousedown!",$ma_kw);
$ma_kw = eregi_replace("onmousemove","!onmousemove!",$ma_kw);
$ma_kw = eregi_replace("onmouseover","!onmouseover!",$ma_kw);
$ma_kw = eregi_replace("onmouseout","!onmouseout!",$ma_kw);
$ma_kw = eregi_replace("onmouseup","!onmouseup!",$ma_kw);
$ma_kw = eregi_replace("onreset","!onreset!",$ma_kw);
$ma_kw = eregi_replace("onselect","!onselect!",$ma_kw);
$ma_kw = eregi_replace("onsubmit","!onsubmit!",$ma_kw);
$ma_kw = eregi_replace("onunload","!onunload!",$ma_kw);
$ma_kw = eregi_replace("document.cookie","!document.cookie!",$ma_kw);
$ma_kw = eregi_replace("vbscript","!vbscript!",$ma_kw);
$ma_kw = eregi_replace("location","!location!",$ma_kw);
$ma_kw = eregi_replace("object","!object!",$ma_kw);
$ma_kw = eregi_replace("vbs","!vbs!",$ma_kw);
$ma_kw = eregi_replace("href","!href!",$ma_kw);
$vtp_p = new VTemplate;
$tpl_p = $vtp_p->Open("modules/pertinance/tpl/rapport.tpl");
$vtp_p->addSession($tpl_p,"rapport");
$vtp_p->setVar($tpl_p,"rapport.ma_kw",$ma_kw);
$vtp_p->setVar($tpl_p,"rapport.NbMotCle",$NbMotCle);
$vtp_p->setVar($tpl_p,"rapport.T3",$T3);
$vtp_p->setVar($tpl_p,"rapport.NbLiens",$NbLiens);
if(quel_groupe() == 4){
$sql = htmlentities($sql);
$sql = addslashes($sql);
$vtp_p->addSession($tpl_p,"sql");
$vtp_p->setVar($tpl_p,"sql.sql",$sql);
$vtp_p->closeSession($tpl_p,"sql");
}
$vtp_p->closeSession($tpl_p,"rapport");
$Raport = $vtp_p->Display($tpl_p,0);
####################################################################
VENDOR STATUS
________________________________________________________________________
The vendor has reportedly been notified. It currently develops a patch.
LINKS
________________________________________________________________________
http://www.security-corporation.com/index.php?id=advisories&a=010
http://www.security-corp.org/index.php?ink=4-15-1
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Grégory Le Bras aka GaLiaRePt | http://www.Security-Corporation.com
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