QNAP QTS up to 4.2.6/4.3.3.0378/4.3.4.0387 memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in QNAP QTS up to 4.2.6/4.3.3.0378/4.3.4.0387. The affected element is an unknown function. The manipulation leads to memory corruption. This vulnerability is referenced as CVE-2017-17033. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in QNAP QTS up to 4.2.6/4.3.3.0378/4.3.4.0387 (Network Attached Storage Software). This issue affects an unknown code. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A buffer overflow vulnerability in password function in QNAP QTS version 4.2.6 build 20171026, 4.3.3.0378 build 20171117, 4.3.4.0387 (Beta 2) build 20171116 and earlier could allow remote attackers to execute arbitrary code on NAS devices.

The bug was discovered 12/11/2017. The weakness was published 12/15/2017 as NAS-201712-15 as confirmed security advisory (Website). The advisory is shared at qnap.com. The identification of this vulnerability is CVE-2017-17033 since 11/28/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The advisory points out:

Multiple buffer overflow vulnerabilities were recently found in QTS 4.2.6 build 20171026, 4.3.3.0378 build 20171117, 4.3.4.0387 (Beta 2) build 20171116 and earlier. If exploited, these vulnerabilities may allow remote attackers to run arbitrary code on NAS devices.

The vulnerability was handled as a non-public zero-day exploit for at least 4 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 11899 (QNAP QTS Multiple Remote Buffer Overflow Vulnerabilities).

Upgrading to version 4.2.6 Build 20171208, 4.3.3.0396 Build 20171205 or 4.3.4.0411 Beta 3 Build 20171208 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1040018†). Similar entries are available at VDB-110759, VDB-110760, VDB-110761 and VDB-110762. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 860677
OpenVAS Name: QNAP QTS Unauthenticated Remote Code Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: QTS 4.2.6 Build 20171208/4.3.3.0396 Build 20171205/4.3.4.0411 Beta 3 Build 20171208

Timelineinfo

11/28/2017 🔍
12/11/2017 +13 days 🔍
12/15/2017 +4 days 🔍
12/15/2017 +0 days 🔍
12/16/2017 +1 days 🔍
12/17/2017 +1 days 🔍
12/21/2017 +4 days 🔍
12/15/2019 +724 days 🔍

Sourcesinfo

Vendor: qnap.com

Advisory: NAS-201712-15
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-17033 (🔍)
GCVE (CVE): GCVE-0-2017-17033
GCVE (VulDB): GCVE-100-110765
SecurityTracker: 1040018

See also: 🔍

Entryinfo

Created: 12/17/2017 09:56
Updated: 12/15/2019 19:43
Changes: 12/17/2017 09:56 (70), 12/15/2019 19:43 (6)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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