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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3066 Advisory (ICSA-18-282-06) Hangzhou Xiongmai Technology Co., Ltd XMeye P2P Cloud Server 10 October 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Xiongmai XMeye P2P Cloud Server Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Access Privileged Data -- Remote/Unauthenticated Unauthorised Access -- Remote/Unauthenticated Resolution: Mitigation CVE Names: CVE-2018-17919 CVE-2018-17917 CVE-2018-17915 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-18-282-06 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-18-282-06) Hangzhou Xiongmai Technology Co., Ltd XMeye P2P Cloud Server Original release date: October 09, 2018 Legal Notice All information products included in http://ics-cert.us-cert.gov 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 http://www.us-cert.gov/tlp/. 1. EXECUTIVE SUMMARY o CVSS v3 8.1 o ATTENTION: Exploitable remotely/low skill level to exploit/information related to these vulnerabilities is publicly available o Vendor: Hangzhou Xiongmai Technology Co., Ltd o Equipment: XMeye P2P Cloud Server o Vulnerabilities: Predictable From Observable State, Hidden Functionality, Missing Encryption of Sensitive Data 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow unauthorized access to video feeds with the potential to modify settings, replace firmware, and/or execute code. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS All products using XMeye P2P Cloud Server are affected. Hangzhou Xiongmai Technology Co., Ltd acts primarily as an Original Equipment Manufacturer (OEM) and sells few, if any, Xiongmai-branded products. Various vendors sell branded devices with Hangzhou Xiongmai Technology Co., Ltd hardware/firmware inside. Use the following methods to check the hardware/firmware: o Check if the product documentation/specifications mention the "XMEye" feature. o Access the err.htm page on the device (http://<Camera IP Address>/ err.htm). Xiongmai or XMeye will be referenced. 3.2 VULNERABILITY OVERVIEW 3.2.1 PREDICTABLE FROM OBSERVABLE STATE CWE-341 An attacker may be able to use MAC addresses to enumerate potential Cloud IDs. Using this ID, the attacker can discover and connect to valid devices using one of the supported apps. CVE-2018-17917 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U /C:L/I:N/A:N). 3.2.2 HIDDEN FUNCTIONALITY CWE-912 An attacker could use an undocumented user account "default" with its default password to login to XMeye and access/view video streams. CVE-2018-17919 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U /C:L/I:L/A:N). 3.2.3 MISSING ENCRYPTION OF SENSITIVE DATA CWE-311 Not all device communication is encrypted. This includes the XMeye service and firmware update communication. This could allow an attacker to eavesdrop on video feeds, steal XMeye login credentials, or impersonate the update server with malicious update code. CVE-2018-17915 has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U /C:H/I:H/A:H). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Multiple o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: China 3.4 RESEARCHER Stefan Viehbock on behalf of SEC Consult Vulnerability Lab reported these vulnerabilities to NCCIC. 4. MITIGATIONS Hangzhou Xiongmai Technology Co., Ltd has not provided mitigations for these vulnerabilities. NCCIC recommends taking immediate action to change the admin account password along with the undocumented "default" account password to minimize risk of exploit. NCCIC also recommends verifying the source of all firmware updates. NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. 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-CERT website 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 NCCIC for tracking and correlation against other incidents. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBW72N6maOgq3Tt24GAQjhMw/8DYiArYcaEaQH7SOdg6vayqYFeNuKHzzf zvrKW+RaPFzqbuGXd4VwpfHEgwhidqDOuBfZWJuDBUGPVdJxw2dVOQzHFdlKV9kx Rrz8FPxzqxsAYGuSYBw2WYEfHsMk7doO40UDyWjeTi33Gi7+M/sMgdujyuJr7hYN vxzURjkgslgCut0vf86dQNzQ+8DewMw6Ppg4e++4foycF8ge5AXvd0fUZMxGy2nz nCujR75LdQ6Bf2LFTu0RItSwpJlkfxmDL66d8LGBeAgzgMqkip5c4su+/usWi+xp D1uHTZqXp4OhglCsJmElFkph2Ka8ieqabM/fqj6/7pm3fX21yecRuYTPqCL5JKYc yNc93byxrp291xlN3ZFKai50cuDZ6nsQOE7vpv5EBmz60SYEM2J2etMCqPVmh0xJ Q3JILS9XRXQpOftghbXtdxzZXEJqRtlL4MIy0UaEEdTnfCjtACdgRQgTC/S4rWIu tru8WVEEABW4D3OebV0Gn/Q0Yi/dVYRAYV9Act8UJYHX14pLah30tI3hmfW2C5cm 3kiN+hjXhJl+1VsABolkcc5h1osjlMxDCBktd05fq6ngr7JARm3FOm+OnF7OeeFP PNT/rRdHNuTYned9xZQg4u5MMKFuFo5/1XdV1WEnsLLC5azV8jZUlFVhzJdBoOzX Yr3bOLIgeco= =7VjL -----END PGP SIGNATURE-----