QNAP QTS/QuTS Hero/QUSBCam2 stack-based overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.6$0-$5k0.00

Summaryinfo

A vulnerability was found in QNAP QTS, QuTS Hero and QUSBCam2. It has been declared as critical. Impacted is an unknown function. Executing a manipulation can lead to stack-based overflow. This vulnerability is registered as CVE-2021-34344. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical was found in QNAP QTS, QuTS Hero and QUSBCam2 (Network Attached Storage Software) (version now known). This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 09/10/2021 as qsa-21-34. The advisory is shared for download at qnap.com. This vulnerability was named CVE-2021-34344 since 06/08/2021. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/10/2021).

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (QNAP Systems, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/08/2021 🔍
09/10/2021 +94 days 🔍
09/10/2021 +0 days 🔍
09/12/2021 +2 days 🔍

Sourcesinfo

Vendor: qnap.com

Advisory: qsa-21-34
Status: Confirmed

CVE: CVE-2021-34344 (🔍)
GCVE (CVE): GCVE-0-2021-34344
GCVE (VulDB): GCVE-100-182440

Entryinfo

Created: 09/10/2021 13:32
Updated: 09/12/2021 20:49
Changes: 09/10/2021 13:32 (48), 09/12/2021 20:49 (1)
Complete: 🔍
Cache ID: 216::103

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