Authentication Token Vulnerability in NETGEAR Switches
CVE-2020-35229

8.8HIGH

Key Information:

Vendor

Netgear
Status
Gs116e Firmware
Vendor
CVE Published:
10 March 2021

What is CVE-2020-35229?

The vulnerability involves the improper handling of authentication tokens in NETGEAR ProSafe Plus Switches, specifically the JGS516PE and GS116Ev2 models. This flaw allows an attacker with access to network traffic to reuse authentication tokens for NSDP write requests, ultimately granting them administrative privileges without the need for valid credentials. The issue arises due to the failure to invalidate old tokens, which can pose significant risks in network environments.

References

https://research.nccgroup.com/2021/03/08/technical-adviso...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.