Risk | Critical |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | N/A |
CWE-ID | CWE-94 |
Exploitation vector | Network |
Public exploit | Vulnerability #1 is being exploited in the wild. |
Vulnerable software Subscribe |
QNAP QTS Server applications / File servers (FTP/HTTP) QuTS hero Hardware solutions / Firmware |
Vendor | QNAP Systems, Inc. |
Security Bulletin
This security bulletin contains information about 1 vulnerabilities.
Updated: 02.02.2022
Raised severity level from High to Critical to reflect in-the-wild exploitation.
EUVDB-ID: #VU59601
Risk: Critical
CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: N/A
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note, the vulnerability is being actively exploited in the wild by the DEADBOLT ransomware.
MitigationInstall updates from vendor's website.
Vulnerable software versionsQNAP QTS: 4.5.1.1456 20201015 - 5.0.0.1870 20211201
QuTS hero: h4.5.0.1279 build 20200421 - h5.0.0.1856 Build 20211117
External linkshttp://www.qnap.com/en/security-advisory/qsa-21-57
http://www.qnap.com/en/security-advisory/qsa-22-02
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.