VDB-154292 · CVE-2018-21139 · GCVE-0-2018-21139

Netgear R7300 information disclosure

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.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Netgear D1500, D500, D6100, D6200, D6220, D6400, D7000, D7000v2, D7800, D8500, DC112A, DGN2200Bv4, DGN2200v4, JNR1010v2, JR6150, JWNR2010v5, PR2000, R6020, R6050, R6080, R6100, R6120, R6220, R6250, R6300v2, R6400, R6400v2, R6700, R6700v2, R6800, R6900, R6900P, R6900v2, R7000, R7000P, R7100LG and R7300. The affected element is an unknown function. Such manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2018-21139. The attack can only be initiated within the local network. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Netgear D1500, D500, D6100, D6200, D6220, D6400, D7000, D7000v2, D7800, D8500, DC112A, DGN2200Bv4, DGN2200v4, JNR1010v2, JR6150, JWNR2010v5, PR2000, R6020, R6050, R6080, R6100, R6120, R6220, R6250, R6300v2, R6400, R6400v2, R6700, R6700v2, R6800, R6900, R6900P, R6900v2, R7000, R7000P, R7100LG and R7300 (Wireless LAN Software) and classified as problematic. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

Certain NETGEAR devices are affected by disclosure of sensitive information. This affects D1500 before 1.0.0.27, D500 before 1.0.0.27, D6100 before 1.0.0.58, D6200 before 1.1.00.30, D6220 before 1.0.0.46, D6400 before 1.0.0.82, D7000 before 1.0.1.68, D7000v2 before 1.0.0.51, D7800 before 1.0.1.42, D8500 before 1.0.3.42, DC112A before 1.0.0.40, DGN2200Bv4 before 1.0.0.102, DGN2200v4 before 1.0.0.102, JNR1010v2 before 1.1.0.54, JR6150 before 1.0.1.18, JWNR2010v5 before 1.1.0.54, PR2000 before 1.0.0.24, R6020 before 1.0.0.34, R6050 before 1.0.1.18, R6080 before 1.0.0.34, R6100 before 1.0.1.22, R6120 before 1.0.0.42, R6220 before 1.1.0.68, R6250 before 1.0.4.30, R6300v2 before 1.0.4.32, R6400 before 1.0.1.44, R6400v2 before 1.0.2.60, R6700 before 1.0.1.48, R6700v2 before 1.2.0.24, R6800 before 1.2.0.24, R6900 before 1.0.1.48, R6900P before 1.3.1.44, R6900v2 before 1.2.0.24, R7000 before 1.0.9.34, R7000P before 1.3.1.44, R7100LG before 1.0.0.48, R7300 before 1.0.0.68, R7500 before 1.0.0.124, R7500v2 before 1.0.3.38, R7900 before 1.0.2.16, R7900P before 1.4.1.24, R8000 before 1.0.4.18, R8000P before 1.4.1.24, R8300 before 1.0.2.122, R8500 before 1.0.2.122, WN3000RP before 1.0.0.68, WN3000RPv2 before 1.0.0.68, WNDR3400v3 before 1.0.1.18, WNDR3700v4 before 1.0.2.102, WNDR3700v5 before 1.1.0.54, WNDR4300v1 before 1.0.2.104, WNDR4300v2 before 1.0.0.56, WNDR4500v3 before 1.0.0.56, WNR1000v4 before 1.1.0.54, WNR2020 before 1.1.0.54, WNR2050 before 1.1.0.54, and WNR3500Lv2 before 1.2.0.54.

The weakness was disclosed 04/23/2020 (Website). The advisory is shared for download at kb.netgear.com. This vulnerability is handled as CVE-2018-21139 since 04/20/2020. Access to the local network is required for this attack. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Affected

Netgear D1500 up to WNR2050

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: 6.2
VulDB Meta Temp Score: 6.1

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

NVD Base Score: 7.1
NVD Vector: 🔍

CNA Base Score: 7.1
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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

04/20/2020 🔍
04/23/2020 +3 days 🔍
04/24/2020 +1 days 🔍
06/02/2024 +1500 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: kb.netgear.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-21139 (🔍)
GCVE (CVE): GCVE-0-2018-21139
GCVE (VulDB): GCVE-100-154292

Entryinfo

Created: 04/24/2020 07:18
Updated: 06/02/2024 09:47
Changes: 04/24/2020 07:18 (37), 04/24/2020 07:23 (12), 10/12/2020 11:13 (1), 10/12/2020 11:23 (1), 06/02/2024 09:47 (33)
Complete: 🔍
Cache ID: 216::103