VDB-189278 · CVE-2021-45639 · PSV-2020-0121

Netgear RBK852 cross site scripting

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-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Netgear CBR40, EAX20, EAX80, EX6120, EX6130, EX7000, EX7500, R7000, R7900, R7960P, R8000, RAX200, XR300, EX3700, MR60, R7000P, R8000P, RAX20, RAX50, RAX80, EX3800, MS60, R6900P, R7900P, RAX15, RAX45, RAX75, RBR750, RBR850, RBS750, RBS850, RBK752 and RBK852. Affected by this issue is some unknown functionality. Such manipulation leads to cross site scripting. This vulnerability is listed as CVE-2021-45639. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Netgear CBR40, EAX20, EAX80, EX6120, EX6130, EX7000, EX7500, R7000, R7900, R7960P, R8000, RAX200, XR300, EX3700, MR60, R7000P, R8000P, RAX20, RAX50, RAX80, EX3800, MS60, R6900P, R7900P, RAX15, RAX45, RAX75, RBR750, RBR850, RBS750, RBS850, RBK752 and RBK852 (Wireless LAN Software). It has been rated as problematic. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity.

The weakness was presented 12/26/2021 as PSV-2020-0121. The advisory is available at kb.netgear.com. This vulnerability is handled as CVE-2021-45639 since 12/25/2021. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

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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: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.2
CNA Vector (MITRE): 🔍

CVSSv2info

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

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
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 🔍
12/30/2021 +4 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: PSV-2020-0121
Status: Confirmed

CVE: CVE-2021-45639 (🔍)
GCVE (CVE): GCVE-0-2021-45639
GCVE (VulDB): GCVE-100-189278

Entryinfo

Created: 12/26/2021 17:48
Updated: 12/30/2021 08:54
Changes: 12/26/2021 17:48 (48), 12/30/2021 08:54 (1)
Complete: 🔍
Cache ID: 216::103