xGuestBook v1.02 Full Path Disclosure

2006.08.01

Credit: dicomdk gmail com

Risk: Low

Local: No

Remote: Yes

CVE: CVE-2006-3937

CWE: CWE-Other

CVSS Base Score: 5/10

Impact Subscore: 2.9/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: None

Availability impact: None

###################Dicomdk####################
Full Path Disclosure xGuestBook v1.02 #
#
http://xatrix.xa.funpic.de/xguestbook2/ #
#
By : X-boy #
##############################################
http://[HOST]/post.php
Test : http://xatrix.xa.funpic.de/xguestbook2/post.php
Result :
========
Notice: Undefined index: user in [site]\post.php on line 15
Notice: Undefined index: mail in [site]\post.php on line 16
Notice: Undefined index: p in [site]\post.php on line 17
Notice: Undefined index: url in [site]\post.php on line 19
##############################################
Patch : #
##############################################
-Open post.php
-Find :
$user = HTMLSPECIALCHARS(trim($_POST['user']));
$email = HTMLSPECIALCHARS(trim($_POST['mail']));
$post = nl2br(HTMLSPECIALCHARS($_POST['p']));
$post = str_replace(" "," ",$post);
$url = HTMLSPECIALCHARS(trim($_POST['url']));
$date = date("Y-m-d g:i:s");
-Change to :
if (isset($_POST['user']) AND isset($_POST['mail']) AND isset($_POST['p']) AND isset($_POST['url']))
{
$user = HTMLSPECIALCHARS(trim($_POST['user']));
$email = HTMLSPECIALCHARS(trim($_POST['mail']));
$post = nl2br(HTMLSPECIALCHARS($_POST['p']));
$post = str_replace(" "," ",$post);
$url = HTMLSPECIALCHARS(trim($_POST['url']));
$date = date("Y-m-d g:i:s");
}
##############################################

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xGuestBook v1.02 Full Path Disclosure

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