• Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
MUST READ

Taking over millions of developers exploiting an Open VSX Registry flaw

 | 

OneClik APT campaign targets energy sector with stealthy backdoors

 | 

APT42 impersonates cyber professionals to phish Israeli academics and journalists

 | 

Kai West, aka IntelBroker, indicted for cyberattacks causing $25M in damages

 | 

Cisco fixed critical ISE flaws allowing Root-level remote code execution

 | 

U.S. CISA adds AMI MegaRAC SPx, D-Link DIR-859 routers, and Fortinet FortiOS flaws to its Known Exploited Vulnerabilities catalog

 | 

CitrixBleed 2: The nightmare that echoes the 'CitrixBleed' flaw in Citrix NetScaler devices

 | 

Hackers deploy fake SonicWall VPN App to steal corporate credentials

 | 

Mainline Health Systems data breach impacted over 100,000 individuals

 | 

Disrupting the operations of cryptocurrency mining botnets

 | 

Prometei botnet activity has surged since March 2025

 | 

The U.S. House banned WhatsApp on government devices due to security concerns

 | 

Russia-linked APT28 use Signal chats to target Ukraine official with malware

 | 

China-linked APT Salt Typhoon targets Canadian Telecom companies

 | 

U.S. warns of incoming cyber threats following Iran airstrikes

 | 

McLaren Health Care data breach impacted over 743,000 people

 | 

American steel giant Nucor confirms data breach in May attack

 | 

The financial impact of Marks & Spencer and Co-op cyberattacks could reach £440M

 | 

Iran-Linked Threat Actors Cyber Fattah Leak Visitors and Athletes' Data from Saudi Games

 | 

SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 50

 | 
  • Home
  • Cyber Crime
  • Cyber warfare
  • APT
  • Data Breach
  • Deep Web
  • Digital ID
  • Hacking
  • Hacktivism
  • Intelligence
  • Internet of Things
  • Laws and regulations
  • Malware
  • Mobile
  • Reports
  • Security
  • Social Networks
  • Terrorism
  • ICS-SCADA
  • POLICIES
  • Contact me
  • Home
  • Breaking News
  • Hacking
  • Internet of Things
  • Tens of thousands of QNAP SOHO NAS devices affected by unpatched RCEs

Tens of thousands of QNAP SOHO NAS devices affected by unpatched RCEs

Pierluigi Paganini April 02, 2021

Unpatched vulnerabilities in QNAP small office/home office (SOHO) network-attached storage (NAS) devices could be exploited by remote attackers to remotely execute arbitrary code.

Security researchers at SAM Seamless Network discovered a couple of critical unpatched flawsin QNAP small office/home office (SOHO) network-attached storage (NAS) devices that could allow remote attackers to execute arbitrary code on vulnerable devices.

The vulnerabilities affect QNAP TS-231 SOHO NAS devices running firmware version 4.3.6.1446 that reached end of life (EOL).

“These vulnerabilities are severe in nature as they allow for full takeover of device from the network including access to the user’s stored data, without any prior knowledge.” reads the advisory published by SAM Seamless Network.

The first vulnerability is an RCE issue that affects any QNAP device exposed to the Internet, it resides in the NAS web server (default TCP port 8080).

Experts focused their analysis on some cgi files, most of them are available through the web server at /mnt/HDA_ROOT/home/httpd/cgi-bin directory on the TS-231 file system.

“During the inspection, we fuzzed the web server with customized HTTP requests to different cgi pages, with focus on those that do not require prior authentication. We’ve been able to generate an interesting scenario, which triggers remote code execution indirectly (i.e., triggers some behavior in other processes).” continues the advisory.

Experts suggest to fix the issue by implementing input sanitizations to some core processes and library APIs, unfortunately the issue has yet to be fixed.

Below the timeline for this issue:

  • October 12, 2020 – Full disclosure reported to QNAP security team.
  • October 23, 2020 – Sent another e-mail to QNAP security team.
  • October 31, 2020 – Automatic reply from “QNAP support” with a ticket number.
  • January 26, 2021 – Sent a notification to QNAP about end of the grace period (which is planned to end on February 12).
  • January 26, 2021 – Reply from QNAP Helpdesk: the problem is confirmed but still in progress.
  • February 12, 2021 – Grace period has elapsed.
  • March 31, 2021 – Initial blog post published.

The second vulnerability is an arbitrary file write vulnerability that resides in the DLNA server (default TCP port 8200) which handles UPNP requests on this port. The vulnerability could be exploited by remote attackers to execute arbitrary code on a remote NAS device.

Below the timeline for this vulnerability:

  • November 29, 2020 – Full disclosure reported to QNAP security team. No reply from QNAP has been received yet for this specific disclosure.
  • March 29, 2021 – Grace period has elapsed.
  • March 31, 2021 – Initial blog post has been published.

If you want to receive the weekly Security Affairs Newsletter for free subscribe here.

Follow me on Twitter: @securityaffairs and Facebook

[adrotate banner=”9″][adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – hacking, SOHO)

[adrotate banner=”5″]

[adrotate banner=”13″]


facebook linkedin twitter

Hacking hacking news information security news IoT IT Information Security malware Pierluigi Paganini RCE Security Affairs Security News SOHO

you might also like

Pierluigi Paganini June 27, 2025
Taking over millions of developers exploiting an Open VSX Registry flaw
Read more
Pierluigi Paganini June 27, 2025
OneClik APT campaign targets energy sector with stealthy backdoors
Read more

leave a comment

newsletter

Subscribe to my email list and stay
up-to-date!

    recent articles

    Taking over millions of developers exploiting an Open VSX Registry flaw

    Hacking / June 27, 2025

    OneClik APT campaign targets energy sector with stealthy backdoors

    Hacking / June 27, 2025

    APT42 impersonates cyber professionals to phish Israeli academics and journalists

    APT / June 27, 2025

    Kai West, aka IntelBroker, indicted for cyberattacks causing $25M in damages

    Cyber Crime / June 26, 2025

    Cisco fixed critical ISE flaws allowing Root-level remote code execution

    Security / June 26, 2025

    To contact me write an email to:

    Pierluigi Paganini :
    pierluigi.paganini@securityaffairs.co

    LEARN MORE

    QUICK LINKS

    • Home
    • Cyber Crime
    • Cyber warfare
    • APT
    • Data Breach
    • Deep Web
    • Digital ID
    • Hacking
    • Hacktivism
    • Intelligence
    • Internet of Things
    • Laws and regulations
    • Malware
    • Mobile
    • Reports
    • Security
    • Social Networks
    • Terrorism
    • ICS-SCADA
    • POLICIES
    • Contact me

    Copyright@securityaffairs 2024

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
    Cookie SettingsAccept All
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities...
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
    Non-necessary
    Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
    SAVE & ACCEPT