Multiple Vulnerabilities in QTS, QuTS hero, and QuTScloud

Summary

Multiple vulnerabilities have been reported to affect QTS, QuTS hero, and QuTScloud: 

• CVE-2021-44051: Command injection vulnerability
  • If exploited, this vulnerability allows remote attackers to run arbitrary commands.

• CVE-2021-44052: Improper link resolution before file access ("link following") vulnerability
  • If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite files.

• CVE-2021-44053: Cross-site scripting (XSS) vulnerability
  • If exploited, this vulnerability allows remote attackers to inject malicious code.

• CVE-2021-44054: Open redirect vulnerability
  • If exploited, this vulnerability allows attackers to redirect users to an untrusted page that contains malware.

We have already fixed the vulnerabilities in the following versions of QTS, QuTS hero, and QuTScloud:

• QTS 5.0.0.1986 build 20220324 and later
• QTS 4.5.4.1991 build 20220329 and later
• QTS 4.3.6.1965 build 20220302 and later
• QTS 4.3.4.1976 build 20220303 and later
• QTS 4.3.3.1945 build 20220303 and later
• QTS 4.2.6 build 20220304 and later
• QuTS hero h5.0.0.1986 build 20220324 and later
• QuTS hero h4.5.4.1971 build 20220310 and later
• QuTScloud c5.0.1.1998 and later

Recommendation

To fix the vulnerabilities, we recommend updating your QNAP operating system to one of the above versions or later.

Updating QTS, QuTS hero, or QuTScloud

1. Log on to QTS, QuTS hero, or QuTScloud as administrator.
2. Go to Control Panel > System > Firmware Update.
3. Under Live Update, click Check for Update.
   QTS, QuTS hero, or QuTScloud downloads and installs the latest available update.

Tip: You can also download the update from the QNAP website. Go to Support > Download Center and then perform a manual update for your specific device.