Netgear WNR2000 up to 1.2.3.7 Firmware denial of service

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 (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
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.
4.6$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Netgear WNR2000 up to 1.2.3.7. Affected by this issue is some unknown functionality of the component Firmware Handler. Executing a manipulation can lead to denial of service. This vulnerability is tracked as CVE-2022-46422. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Netgear WNR2000 up to 1.2.3.7 (Wireless LAN Software) and classified as problematic. This vulnerability affects an unknown code block of the component Firmware Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

An issue in Netgear WNR2000 v1 1.2.3.7 and earlier allows authenticated attackers to cause a Denial of Service (DoS) via uploading a crafted firmware image during the firmware update process.

The weakness was disclosed 12/21/2022. The advisory is available at hackmd.io. This vulnerability was named CVE-2022-46422 since 12/05/2022. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/21/2023). This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

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

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.4
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/05/2022 🔍
12/21/2022 +16 days 🔍
12/21/2022 +0 days 🔍
01/21/2023 +31 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: hackmd.io
Status: Not defined

CVE: CVE-2022-46422 (🔍)
GCVE (CVE): GCVE-0-2022-46422
GCVE (VulDB): GCVE-100-216382

Entryinfo

Created: 12/21/2022 08:09
Updated: 01/21/2023 09:56
Changes: 12/21/2022 08:09 (39), 01/21/2023 09:56 (11)
Complete: 🔍
Cache ID: 216::103

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