VDB-189135 · CVE-2021-45509 · PSV-2020-0564

Netgear CBR40/RBK752/RBR750/RBS750/RBK852/RBR850/RBS850 improper authentication

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.
9.0	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in Netgear CBR40, RBK752, RBR750, RBS750, RBK852, RBR850 and RBS850. Affected by this issue is some unknown functionality. Performing a manipulation results in improper authentication. This vulnerability is known as CVE-2021-45509. Access to the local network is required for this attack. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Netgear CBR40, RBK752, RBR750, RBS750, RBK852, RBR850 and RBS850 (Wireless LAN Software). This affects some unknown functionality. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 12/26/2021 as PSV-2020-0564. It is possible to read the advisory at kb.netgear.com. This vulnerability is uniquely identified as CVE-2021-45509 since 12/25/2021. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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

Productinfo

Type

Wireless LAN Software

Vendor

Netgear

Name

License

commercial

Website

Vendor: https://www.netgear.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.2
VulDB Meta Temp Score: 9.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.6
CNA Vector (MITRE): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/25/2021 🔍
12/26/2021 +1 days 🔍
12/26/2021 +0 days 🔍
12/27/2021 +1 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: PSV-2020-0564
Status: Confirmed

CVE: CVE-2021-45509 (🔍)
GCVE (CVE): GCVE-0-2021-45509
GCVE (VulDB): GCVE-100-189135

Entryinfo

Created: 12/26/2021 09:06
Updated: 12/27/2021 15:11
Changes: 12/26/2021 09:06 (48), 12/27/2021 15:11 (1)
Complete: 🔍
Cache ID: 216::103