Netgear XR500 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, which was classified as critical, has been found in Netgear D3600, D6000, D6100, R7800, R8900, R9000, RBK50, RBR50, RBS50, WNDR3700v4, WNDR4300v1, WNDR4300v2, WNDR4500v3, WNR2000v5 and XR500. This vulnerability affects unknown code. The manipulation leads to stack-based overflow. This vulnerability is traded as CVE-2019-20735. Access to the local network is required for this attack to succeed. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Netgear D3600, D6000, D6100, R7800, R8900, R9000, RBK50, RBR50, RBS50, WNDR3700v4, WNDR4300v1, WNDR4300v2, WNDR4500v3, WNR2000v5 and XR500 (Wireless LAN Software) and classified as critical. This issue affects an unknown functionality. 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 D3600 before 1.0.0.75, D6000 before V1.0.0.75, D6100 before V1.0.0.63, R7800 before v1.0.2.52, R8900 before v1.0.4.2, R9000 before v1.0.4.2, RBK50 before v2.3.0.32, RBR50 before v2.3.0.32, RBS50 before v2.3.0.32, WNDR3700v4 before V1.0.2.102, WNDR4300v1 before V1.0.2.104, WNDR4300v2 before v1.0.0.58, WNDR4500v3 before v1.0.0.58, WNR2000v5 before v1.0.0.68, and XR500 before V2.3.2.32.

The weakness was shared 04/16/2020 (Website). It is possible to read the advisory at kb.netgear.com. The identification of this vulnerability is CVE-2019-20735 since 04/15/2020. The attack can only be done within the local network. The successful exploitation needs a simple authentication. The technical details are unknown and an exploit is not publicly available.

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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

04/15/2020 🔍
04/16/2020 +1 days 🔍
04/17/2020 +1 days 🔍
05/31/2024 +1505 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: kb.netgear.com
Status: Not defined

CVE: CVE-2019-20735 (🔍)
GCVE (CVE): GCVE-0-2019-20735
GCVE (VulDB): GCVE-100-153959

Entryinfo

Created: 04/17/2020 10:36
Updated: 05/31/2024 08:44
Changes: 04/17/2020 10:36 (36), 04/17/2020 10:41 (12), 05/31/2024 08:44 (34)
Complete: 🔍
Cache ID: 216::103

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