VDB-190405 · CVE-2021-34980 · GCVE-0-2021-34980

Netgear XR500 1.1.0.78_1.0.1 Environment Variable setupwizard.cgi SOAP_LOGIN_TOKEN stack-based overflow

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.
8.8	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in Netgear D3600, D6000, D6200, D7000, JR6150, PR2000, R6020, R6050, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, WNR2020 and XR500 1.1.0.78_1.0.1. It has been classified as critical. The affected element is an unknown function of the file setupwizard.cgi of the component Environment Variable Handler. This manipulation of the argument SOAP_LOGIN_TOKEN causes stack-based overflow. This vulnerability is registered as CVE-2021-34980. The attack requires access to the local network. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Netgear D3600, D6000, D6200, D7000, JR6150, PR2000, R6020, R6050, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, WNR2020 and XR500 1.1.0.78_1.0.1 (Wireless LAN Software). Affected by this vulnerability is an unknown code block of the file setupwizard.cgi of the component Environment Variable Handler. The manipulation of the argument SOAP_LOGIN_TOKEN with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is 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). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 01/14/2022. The advisory is shared at zerodayinitiative.com. This vulnerability is known as CVE-2021-34980 since 06/17/2021. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/14/2022).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Wireless LAN Software

Vendor

Netgear

Name

Version

1.1.0.78_1.0.1

License

commercial

Website

Vendor: https://www.netgear.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (Zero Day Initiative): 🔍

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: 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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/17/2021 🔍
01/14/2022 +211 days 🔍
01/14/2022 +0 days 🔍
01/17/2022 +3 days 🔍

Sourcesinfo

Vendor: netgear.com

Advisory: zerodayinitiative.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-34980 (🔍)
GCVE (CVE): GCVE-0-2021-34980
GCVE (VulDB): GCVE-100-190405

Entryinfo

Created: 01/14/2022 13:40
Updated: 01/17/2022 14:15
Changes: 01/14/2022 13:40 (51), 01/17/2022 14:15 (1)
Complete: 🔍
Cache ID: 216::103