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AUSCERT External Security Bulletin Redistribution
ESB-2021.0228
ICS Advisory (icsa-21-019-02) Reolink P2P Cameras
20 January 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Reolink P2P Cameras
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-25173 CVE-2020-25169
Original Bulletin:
https://us-cert.cisa.gov/ics/advisories/icsa-21-019-02
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ICS Advisory (ICSA-21-019-02)
Reolink P2P Cameras
Original release date: January 19, 2021
Legal Notice
All information products included in https://us-cert.cisa.gov/ics are provided
"as is" for informational purposes only. The Department of Homeland Security
(DHS) does not provide any warranties of any kind regarding any information
contained within. DHS does not endorse any commercial product or service,
referenced in this product or otherwise. Further dissemination of this product
is governed by the Traffic Light Protocol (TLP) marking in the header. For more
information about TLP, see https://us-cert.cisa.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 9.1
o ATTENTION: Exploitable remotely/low skill level to exploit
o Vendor: Reolink
o Equipment: P2P protocol
o Vulnerabilities: Use of Hard-coded Cryptographic Key, Cleartext
Transmission of Sensitive Information
2. RISK EVALUATION
Successful exploitation of these vulnerabilities could permit unauthorized
access to sensitive information.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following Reolink devices use P2P:
o RLC-4XX series
o RLC-5XX series
o RLN-X10 series
3.2 VULNERABILITY OVERVIEW
3.2.1 USE OF HARD-CODED CRYPTOGRAPHIC KEY CWE-321
An attacker with local network access can obtain a fixed cryptography key which
may allow for further compromise of Reolink P2P cameras outside of local
network access.
CVE-2020-25173 has been assigned to this vulnerability. A CVSS v3 base score of
7.7 has been calculated; the CVSS vector string is ( AV:L/AC:L/PR:N/UI:N/S:U/
C:H/I:H/A:N ).
3.2.2 CLEARTEXT TRANSMISSION OF SENSITIVE INFORMATION CWE-319
The affected Reolink P2P products do not sufficiently protect data transferred
between the local device and Reolink servers. This can allow an attacker to
access sensitive information, such as camera feeds.
CVE-2020-25169 has been assigned to this vulnerability. A CVSS v3 base score of
9.1 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/
C:H/I:H/A:N ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Communications
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Hong Kong
3.4 RESEARCHER
Nozomi Networks reported these vulnerabilities to CISA.
4. MITIGATIONS
CISA is currently coordinating with the vendor and security researcher to
identify additional mitigations. The researcher recommends users disable P2P
feature on their Reolink devices.
Users can upgrade the firmware of the Reolink device to mitigate some risk.
On the download page, please choose PoE IP Cameras&NVRs, then choose the
correct model of the camera to download the latest firmware.
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure that they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
o When remote access is required, use secure methods, such as Virtual Private
Networks (VPNs), recognizing that VPNs may have vulnerabilities and should
be updated to the most current version available. Also recognize that VPN
is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices
on the ICS webpage on us-cert.cisa.gov . Several recommended practices are
available for reading and download, including Improving Industrial Control
Systems Cybersecurity with Defense-in-Depth Strategies .
Additional mitigation guidance and recommended practices are publicly available
on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper,
ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation
Strategies .
Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to CISA for tracking
and correlation against other incidents.
No known public exploits specifically target these vulnerabilities.
For any questions related to this report, please contact the CISA at:
Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870
CISA continuously strives to improve its products and services. You can help by
choosing one of the links below to provide feedback about this product.
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The University of Queensland
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