VDB-189241 · CVE-2021-45617 · PSV-2020-0156

Netgear RBK852 command injection

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.
9.6	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Netgear CBR40, EAX20, EAX80, EX7500, R6400, R6900P, R7000, R7000P, R7900, R7960P, R8000, RAX200, RS400, XR300, MK62, MR60, R6400v2, R8000P, RAX20, RAX45, RAX80, MS60, R6700v3, R7900P, RAX15, RAX50, RAX75, RBR750, RBR850, RBS750, RBS850, RBK752 and RBK852 and classified as critical. This affects an unknown function. This manipulation causes command injection. This vulnerability is handled as CVE-2021-45617. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Netgear CBR40, EAX20, EAX80, EX7500, R6400, R6900P, R7000, R7000P, R7900, R7960P, R8000, RAX200, RS400, XR300, MK62, MR60, R6400v2, R8000P, RAX20, RAX45, RAX80, MS60, R6700v3, R7900P, RAX15, RAX50, RAX75, RBR750, RBR850, RBS750, RBS850, RBK752 and RBK852 (Wireless LAN Software). It has been declared as very critical. Affected by this vulnerability is an unknown part. 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.

The weakness was released 12/26/2021 as PSV-2020-0156. The advisory is shared at kb.netgear.com. This vulnerability is known as CVE-2021-45617 since 12/25/2021. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/26/2021). MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best 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: 9.8
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 (MITRE): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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 🔍
12/28/2021 +2 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: PSV-2020-0156
Status: Confirmed

CVE: CVE-2021-45617 (🔍)
GCVE (CVE): GCVE-0-2021-45617
GCVE (VulDB): GCVE-100-189241

Entryinfo

Created: 12/26/2021 17:31
Updated: 12/28/2021 14:32
Changes: 12/26/2021 17:31 (48), 12/28/2021 14:32 (1)
Complete: 🔍
Cache ID: 216::103