CVE-2021-34978

Published on: 01/13/2022 12:00:00 AM UTC

Last Modified on: 01/20/2022 02:53:00 PM UTC

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Certain versions of R6260 from Netgear contain the following vulnerability:

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. A crafted SOAP request can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13511.

  • CVE-2021-34978 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • Affected Vendor/Software: URL Logo NETGEAR - R6260 version 1.1.0.78_1.0.1

CVSS3 Score: 8.8 - HIGH

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
ADJACENT_NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH HIGH HIGH

CVSS2 Score: 8.3 - HIGH

Access
Vector
Access
Complexity
Authentication
ADJACENT_NETWORK LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
COMPLETE COMPLETE COMPLETE

CVE References

Description Tags Link
ZDI-21-1240 | Zero Day Initiative www.zerodayinitiative.com
text/html
URL Logo MISC www.zerodayinitiative.com/advisories/ZDI-21-1240/
Security Advisory for Vertical Privilege Escalation on Some Routers, DSL Modem Routers, and Access Points, PSV-2021-0151 and PSV-2021-0170 | Answer | NETGEAR Support kb.netgear.com
text/html
URL Logo MISC kb.netgear.com/000064258/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-DSL-Modem-Routers-and-Access-Points-PSV-2021-0151-and-PSV-2021-0170?article=000064258

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
HardwareNetgearR6260-AllAllAll
Operating
System
NetgearR6260 Firmware1.1.0.78_1.0.1AllAllAll
  • cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:netgear:r6260_firmware:1.1.0.78_1.0.1:*:*:*:*:*:*:*:

Discovery Credit

Sherman Chann Zhi Shen & Hoang Thach Nguyen (d4rkn3ss)

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-34978 : This vulnerability allows network-adjacent attackers to execute arbitrary code on affected install… twitter.com/i/web/status/1… 2022-01-13 22:21:37
Reddit Logo Icon /r/netcve CVE-2021-34978 2022-01-13 23:38:59
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