QNAP Q'center Virtual Appliance up to 1.7.1063 SSH command injection

Summaryinfo

A vulnerability classified as critical has been found in QNAP Q'center Virtual Appliance up to 1.7.1063. This affects an unknown part of the component SSH. This manipulation causes command injection. The identification of this vulnerability is CVE-2018-0710. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability classified as critical was found in QNAP Q'center Virtual Appliance up to 1.7.1063. Affected by this vulnerability is some unknown processing of the component SSH. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Command injection vulnerability in SSH of QNAP Q'center Virtual Appliance version 1.7.1063 and earlier could allow authenticated users to run arbitrary commands.

The bug was discovered 07/11/2018. The weakness was shared 07/17/2018 as not defined posting (Bugtraq). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2018-0710 since 11/28/2017. The attack can be launched remotely. Required for exploitation is a single authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13302 (QNAP Qcenter Virtual Appliance Vulnerabilities(NAS-201807-10-201807-10)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (45015). The entries VDB-121515, VDB-121516, VDB-121517 and VDB-121518 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• QNAP

Name

• Q'center Virtual Appliance

Version

• 1.7.1063

License

• commercial

Website

• Vendor: https://www.qnap.com/

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Be aware that VulDB is the high quality source for vulnerability data.

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