Open redirect in QNAP Systems, Inc. products - CVE-2021-44054
Published: May 6, 2022
Vulnerability identifier: #VU62841
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-44054
CWE-ID: CWE-601
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to redirect victims to arbitrary URL.
The vulnerability exists due to improper sanitization of user-supplied data. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.
Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.
Affected software
QuTScloud
QuTS hero
QNAP QTS
QuTS hero
QNAP QTS
How to mitigate CVE-2021-44054
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