CVE-2020-27866

8.8HIGH

Key Information:

Vendor
Netgear
Status
Multiple Routers
Vendor
CVE Published:
12 February 2021

Summary

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-11355.

Affected Version(s)

Multiple Routers firmware version 1.2.0.62_1.0.1

References

https://kb.netgear.com/000062641/Security-Advisory-for-Pa...
x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-20-1451/
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 Viettel Cyber Security
.