QNAP QTS up to 4.2.6/4.3.3/4.3.4/4.3.5 command injection

Summaryinfo

A vulnerability was found in QNAP QTS up to 4.2.6/4.3.3/4.3.4/4.3.5 and classified as critical. Impacted is an unknown function. Executing a manipulation can lead to command injection. The identification of this vulnerability is CVE-2018-14746. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in QNAP QTS up to 4.2.6/4.3.3/4.3.4/4.3.5 (Network Attached Storage Software) and classified as critical. This vulnerability affects an unknown code. 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. CVE summarizes:

Command Injection vulnerability in QTS 4.3.5 build 20181013, QTS 4.3.4 build 20181008, QTS 4.3.3 build 20180829, QTS 4.2.6 build 20180829 and earlier versions could allow remote attackers to run arbitrary commands on the NAS.

The bug was discovered 11/22/2018. The weakness was shared 11/28/2018 (Website). The advisory is shared for download at qnap.com. This vulnerability was named CVE-2018-14746 since 07/30/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1202.

The vulnerability was handled as a non-public zero-day exploit for at least 6 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 13384 (QNAP QTS Multiple Vulnerabilties (NAS-201811-22)).

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

The entries VDB-127265, VDB-127266 and VDB-127267 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Network Attached Storage Software

Vendor

• QNAP

Name

• QTS

Version

• 4.2.0
• 4.2.1
• 4.2.2
• 4.2.3
• 4.2.4
• 4.2.5
• 4.2.6
• 4.3.0
• 4.3.1
• 4.3.2
• 4.3.3
• 4.3.4
• 4.3.5

License

• commercial

Website

• Vendor: https://www.qnap.com/

CPE 2.3info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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