CVE-2021-28804 Command Injection Vulnerabilities in QTS and QuTS hero

What is CVE-2021-28804?

CVE-2021-28804 is a critical command injection vulnerability in Qnap Qts, published on 1 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A command injection vulnerabilities have been reported to affect QTS and QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary commands in a compromised application. This issue affects: QNAP Systems Inc. QTS versions prior to 4.5.1.1540 build 20210107. QNAP Systems Inc. QuTS hero versions prior to h4.5.1.1582 build 20210217.

Weakness: CWE-78

Which versions are affected by CVE-2021-28804?

It affects 2 products.

Products include Qnap Qts, Qnap Quts Hero.

How do I fix CVE-2021-28804?

No fix has been published for CVE-2021-28804 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-28804 being exploited?

There is no known exploitation of CVE-2021-28804 in the wild and no public exploit code.

Other vulnerabilities in Qnap Qts

• CVE-2020-2509 QNAP Network-Attached Storage (NAS) Command Injection Exploited Critical 9.8
• CVE-2018-19949 QNAP NAS File Station Command Injection Exploited Critical 9.8
• CVE-2019-7193 QNAP QTS Improper Input Validation Exploited Critical 9.8
• CVE-2018-19943 QNAP NAS File Station Cross-Site Scripting Exploited High 8.0
• CVE-2018-19953 QNAP NAS File Station Cross-Site Scripting Exploited Medium 6.1

All Qnap Qts vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8p34-xr7p-88q2.