Netgear D6100/R7800/R9000/WNDR3700v4/WNDR4300 stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Netgear D6100, R7800, R9000, WNDR3700v4 and WNDR4300 and classified as critical. This affects an unknown part. The manipulation leads to stack-based overflow. This vulnerability is traded as CVE-2018-21171. Access to the local network is required for this attack to succeed. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Netgear D6100, R7800, R9000, WNDR3700v4 and WNDR4300 (Wireless LAN Software) and classified as critical. This issue affects an unknown part. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, R7800 before 1.0.2.40, R9000 before 1.0.3.6, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.98.

The weakness was shared 04/27/2020 (Website). The advisory is shared at kb.netgear.com. The identification of this vulnerability is CVE-2018-21171 since 04/20/2020. The attack needs to be done within the local network. A simple authentication is necessary for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

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Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector (MITRE): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/20/2020 🔍
04/27/2020 +7 days 🔍
04/28/2020 +1 days 🔍
06/03/2024 +1497 days 🔍

Sourcesinfo

Vendor: netgear.com

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

CVE: CVE-2018-21171 (🔍)
GCVE (CVE): GCVE-0-2018-21171
GCVE (VulDB): GCVE-100-154409

Entryinfo

Created: 04/28/2020 09:51
Updated: 06/03/2024 09:14
Changes: 04/28/2020 09:51 (36), 04/28/2020 09:56 (12), 10/13/2020 09:16 (1), 10/13/2020 09:21 (1), 06/03/2024 09:14 (33)
Complete: 🔍
Cache ID: 216::103

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