Sunday, May 30, 2021

CommScope Ruckus IoT Controller Hard-Coded Web Application Administrator Password

KL-001-2021-004: CommScope Ruckus IoT Controller Hard-coded Web Application Administrator Password

Title: CommScope Ruckus IoT Controller Hard-coded Web Application Administrator Password
Advisory ID: KL-001-2021-004
Publication Date: 2021.05.26
Publication URL:

1. Vulnerability Details

Affected Vendor: CommScope
Affected Product: Ruckus IoT Controller
Affected Version: and earlier
Platform: Linux
CWE Classification: CWE-259: Use of Hard-coded Password
CVE ID: CVE-2021-33219

2. Vulnerability Description

An undocumented, administrative-level, hard coded web
application account exists in the IoT Controller OVA which
cannot be changed by the customer.

3. Technical Description

Ruckus vRIoT server software is available from the software
library at:

Once the OVA is imported into VirtualBox, a VMDK file is
created. The VMDK file can be mounted and the directory
structure and its contents can be perused. The virtual appliance
contains two web application accounts with passwords stored
in clear text on the file system. The two accounts are 'admin'
and 'nplus1user'. The 'admin' account is documented in vendor
documentation, but the 'nplus1user' account is undocumented.

The password for 'admin' is documented and can be changed
by the user. The password for the 'nplus1user' account
is 'nplus1user'. Both accounts are administrative-level
accounts. The virtual appliance does not appear to offer a
mechanism for changing the default password from the vendor
for the 'nplus1user' account.

4. Mitigation and Remediation Recommendation

The vendor has released an updated firmware ( which
remediates the described vulnerability. Firmware and release
notes are available at:

5. Credit

This vulnerability was discovered by Jim Becher (@jimbecher)
of KoreLogic, Inc.

6. Disclosure Timeline

2021.03.30 - KoreLogic submits vulnerability details to
2021.03.30 - CommScope acknowledges receipt and the intention
to investigate.
2021.04.06 - CommScope notifies KoreLogic that this issue,
along with several others reported by KoreLogic,
will require more than the standard 45 business
day remediation timeline.
2021.04.06 - KoreLogic agrees to extend disclosure embargo if
2021.04.30 - CommScope informs KoreLogic that remediation for
this vulnerability will be available inside of the
standard 45 business day timeline. Requests
KoreLogic acquire CVE number for this
2021.05.14 - 30 business days have elapsed since the
vulnerability was reported to CommScope.
2021.05.17 - CommScope notifies KoreLogic that the patched
version of the firmware will be available the week
of 2021.05.24.
2021.05.19 - KoreLogic requests CVE from MITRE.
2021.05.19 - MITRE issues CVE-2021-33219.
2021.05.25 - CommScope releases firmware and associated
2021.05.26 - KoreLogic public disclosure.

7. Proof of Concept

With the VMDK file mounted at the current working directory:
$ more ./VRIOT/authServer/app/authapi# more
if not Account.objects.count()>0:
admin_acc = Account()
admin_acc.username = 'admin'
admin_acc.first_name = 'Ed'
admin_acc.last_name = 'Sy' = 'Ruckus' = '[email protected]'
admin_acc.password = pbkdf2_sha256.hash('admin')
admin_acc.send_notification = False
with open('/var/log/auth_mongo_conn.log','a+') as f:
f.write('Admin Account Created Succssfully!')

admin_acc = Account()
admin_acc.username = 'nplus1user'
admin_acc.first_name = 'Ed'
admin_acc.last_name = 'Sy' = 'Ruckus' = '[email protected]'
admin_acc.password = pbkdf2_sha256.hash('nplus1user')

The contents of this advisory are copyright(c) 2021
KoreLogic, Inc. and are licensed under a Creative Commons
Attribution Share-Alike 4.0 (United States) License:

KoreLogic, Inc. is a founder-owned and operated company with a
proven track record of providing security services to entities
ranging from Fortune 500 to small and mid-sized companies. We
are a highly skilled team of senior security consultants doing
by-hand security assessments for the most important networks in
the U.S. and around the world. We are also developers of various
tools and resources aimed at helping the security community.

Our public vulnerability disclosure policy is available at:


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thank you Templateism for the design - You should have written the code a little more complicated - Nothing Encrypted anymore