CG-WLR300NX fails to restrict access permissions


CG-WLR300NX provided by Corega Inc is a wireless LAN router. CG-WLR300NX fails to restrict access permissions.

Satoshi Ogawa of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Attack Vector: Adjacent Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: Low
  • Availability Impact: Low
CVSS V2 Severity:
Base Metrics 5.4 (Medium) [IPA Score]
  • Access Vector: Adjacent Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

Corega Inc
  • CG-WLR300NX firmware Ver. 1.20 and earlier


An attacker who can access the product may perform an arbitrary operation in the product while an administrator logs in.

[Update the Firmware]
Update to the latest version of firmware according to the information provided by the developer.
Vendor Information

Corega Inc
CWE (What is CWE?)

  1. Permissions(CWE-264) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2016-7811

  1. JVN : JVN#23549283
  2. National Vulnerability Database (NVD) : CVE-2016-7811
Revision History

  • [2016/11/11]
      Web page was published
      References : Content was added