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AUSCERT Security Bulletin
ASB-2021.0098
Qlocker/eCh0raix ransomware attacks targeting QNAP products
23 April 2021
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AusCERT Security Bulletin Summary
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Product: QNAP NAS
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
OVERVIEW
Widespread attacks on QNAP products resulting in Qlocker and eCh0raix
ransomware infections are currently being reported by the media [1][2].
The attacks are being carried out through exploitation of vulnerabilities
allowing unauthenticated takeover of Internet-facing hosts.
QNAP have published actions to take to secure QNAP NAS products in
response to these attacks [3].
QNAP have identified two vulnerabilities related to the attacks:
o "An SQL injection vulnerability has been reported to affect QNAP
NAS running Multimedia Console or the Media Streaming add-on." [4]
o "A hard-coded credentials vulnerability has been reported to affect
QNAP NAS running HBS 3 Hybrid Backup Sync." [5]
IMPACT
The vendor has provided the following information :
o SQL injection vulnerability
"If exploited, the vulnerability allows remote attackers to obtain
application information." [4]
o Hard-coded credentials vulnerability
"If exploited, the vulnerability allows remote attackers to log in
to a device with the hard-coded credentials." [5]
MITIGATION
QNAP states:
o SQL injection vulnerability
"To fix the vulnerability, we recommend updating Multimedia Console
or the Media Streaming add-on to the latest version. Additionally
for devices running QTS 4.3.3 and QTS 4.3.6 updating QTS is highly
recommended." [4]
o Hard-coded credentials vulnerability
"To fix the vulnerability, we recommend updating HBS 3 Hybrid Backup
Sync to the latest version." [5]
QNAP offer the following best practice regarding enhancing NAS security [6].
REFERENCES
[1] If you have a QNAP NAS, stop what you're doing right now and
install latest updates.
https://www.theregister.com/2021/04/22/qnap_nas_ransomware_qlocker_ech0raix/
[2] Massive Qlocker ransomware attack uses 7zip to encrypt QNAP devices
https://www.bleepingcomputer.com/news/security/massive-qlocker-ransomware-attack-uses-7zip-to-encrypt-qnap-devices/
[3] Response to Qlocker Ransomware Attacks: Take Actions to Secure QNAP
NAS
https://www.qnap.com/en/news/2021/response-to-qlocker-ransomware-attacks-take-actions-to-secure-qnap-nas
[4] SQL Injection Vulnerability in Multimedia Console and the Media
Streaming Add-On
https://www.qnap.com/en/security-advisory/qsa-21-11
[5] Hard-Coded Credentials Vulnerability in HBS 3 Hybrid Backup Sync
https://www.qnap.com/en/security-advisory/qsa-21-13
[6] What is the best practice for enhancing NAS security?
https://www.qnap.com/en/how-to/faq/article/what-is-the-best-practice-for-enhancing-nas-security
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. 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.
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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.
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