Command Injection in QNAP Systems, Inc. products - CVE-2021-44051
Published: May 6, 2022
Vulnerability identifier: #VU62838
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-44051
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
QuTScloud
QuTS hero
QNAP QTS
QuTS hero
QNAP QTS
How to mitigate CVE-2021-44051
Install updates from vendor's website.
QuTScloud - update to c5.0.1.1998
QuTS hero - addressed in versions h4.5.4.1971 Build 20220310, h5.0.0.1986 Build 20220324
QNAP QTS - addressed in versions 4.2.6 20220304, 4.3.3.1945 20220303, 4.3.4.1976 20220303, 4.3.6.1965 20220302, 4.5.4.1991 20220329, 5.0.0.1986 20220324
QuTS hero - addressed in versions h4.5.4.1971 Build 20220310, h5.0.0.1986 Build 20220324
QNAP QTS - addressed in versions 4.2.6 20220304, 4.3.3.1945 20220303, 4.3.4.1976 20220303, 4.3.6.1965 20220302, 4.5.4.1991 20220329, 5.0.0.1986 20220324