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CVE-2021-34980

Published: Jan 13, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-121
NVD MITRE
8.8CVSSHIGH
EPSS Score
1.4%
Top 31.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. When parsing the SOAP_LOGIN_TOKEN environment variable, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-14107.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-121CWE-787

Affected Products

AC2100NETGEARNetworking Infrastructure
AC2400NETGEARNetworking Infrastructure
AC2600NETGEARNetworking Infrastructure
R6020NETGEARNetworking Infrastructure
R6080NETGEARNetworking Infrastructure
netgearcommercialUSNetworking Infrastructureaka net gear
and 13 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://kb.netgear.com/000064262/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0150
kb.netgear.com
https://kb.netgear.com/000064262/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0150?article=000064262
kb.netgear.com
https://www.zerodayinitiative.com/advisories/ZDI-21-1242/
zerodayinitiative.com

Timeline

Published
Jan 13, 2022
Last Updated
Nov 21, 2024

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