CVE-2021-43164: OS Command Injection

Published May 4, 2022
·
Updated

A Remote Code Execution (RCE) vulnerability exists in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS 1.55.1915 / EW3.0(1)B11P55 via the updateVersion function in /cgi-bin/luci/api/wireless.

Affected Software

12 affected components
Ruijienetworks Reyeeos<=1.55.1915_ew_3.0\(1\)b11p55
Ruijienetworks Rg-ew1200
Ruijienetworks Rg-ew1200g Pro
Ruijienetworks Rg-ew1800gx Pro
Ruijienetworks Rg-ew300 Pro
Ruijienetworks Rg-ew3200gx Pro
All of the following
Ruijienetworks Reyeeos<=1.55.1915_ew_3.0\(1\)b11p55
Any of the following
Ruijienetworks Rg-ew1200
Ruijienetworks Rg-ew1200g Pro
Ruijienetworks Rg-ew1800gx Pro
Ruijienetworks Rg-ew300 Pro
Ruijienetworks Rg-ew3200gx Pro

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Ruijie Networks Ruijie RG-EW Series Routers (ReyeeOS/EW_3.0) to a version that resolves this vulnerability.

    Fixed in ReyeeOS 1.55.1915 / EW_3.0(1)B11P55

Event History

May 4, 2022
CVE Published
via MITRE·12:08 AM
Data Sourced
via MITRE·12:08 AM
Description
Data Sourced
via NVD·01:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is CVE-2021-43164?

CVE-2021-43164 is a Remote Code Execution (RCE) vulnerability in Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS 1.55.1915 / EW_3.0(1)B11P55.

2

How severe is CVE-2021-43164?

CVE-2021-43164 has a severity score of 8.8 (high).

3

How does CVE-2021-43164 affect Ruijie Networks Ruijie RG-EW Series Routers?

CVE-2021-43164 affects Ruijie Networks Ruijie RG-EW Series Routers up to ReyeeOS 1.55.1915 / EW_3.0(1)B11P55.

4

Is Ruijie Networks Ruijie RG-EW Series Router RG-EW1200 vulnerable to CVE-2021-43164?

No, Ruijie Networks Ruijie RG-EW Series Router RG-EW1200 is not vulnerable to CVE-2021-43164.

5

What is the Common Weakness Enumeration (CWE) ID for CVE-2021-43164?

The CWE ID for CVE-2021-43164 is 78.

Contact

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