Authentication Bypass in NETGEAR Routers
CVE-2021-34865

8.8HIGH

Key Information:

Vendor

Netgear
Status
Multiple Routers
Vendor
CVE Published:
25 January 2022

What is CVE-2021-34865?

This vulnerability enables network-adjacent attackers to bypass authentication protocols on certain NETGEAR routers, thanks to a flaw in the mini_httpd service operating on TCP port 80. The weakness arises from improper string matching logic that allows unauthorized access to protected resources. By exploiting this vulnerability, attackers can escalate their privileges and execute arbitrary code with root-level access, potentially compromising the entire router and connected network.

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Affected Version(s)

Multiple Routers 1.2.0.76_1.0.1

References

https://www.zerodayinitiative.com/advisories/ZDI-21-1051/
x_refsource_MISC
https://kb.netgear.com/000063955/Security-Advisory-for-Au...
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

Credit

1sd3d of VCS
JSON
.