Cyber Resilience

CVE-2023-38902

RCE in Ruijie Rg-Ew1200 Firmware 3.0\(1\)b11p219

Public PoCRCECommand Injection
Published
17 August 2023
Modified
21 November 2024
CVSS Score v3.1 8.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.022 81th percentile
Risk Priority 68 floored blend · peak EPSS

Summary

CVE-2023-38902 is a high-severity Command Injection (CWE-77) vulnerability in Ruijie Rg-Ew1200 Firmware. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 19% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

A command injection vulnerability in RG-EW series home routers and repeaters v.EW_3.0(1)B11P219, RG-NBS and RG-S1930 series switches v.SWITCH_3.0(1)B11P219, RG-EG series business VPN routers v.EG_3.0(1)B11P219, EAP and RAP series wireless access points v.AP_3.0(1)B11P219, and NBC series wireless controllers v.AC_3.0(1)B11P219 allows an…

more

authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /cgi-bin/luci/api/cmd via the remoteIp field.

CWE(s)
CWE-77

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1059.008 Network Device CLI Execution
Adversaries may abuse scripting or built-in command line interpreters (CLI) on network devices to execute malicious command and payloads.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-2642Same product: Ruijie Rg-Nbs2009G-P
CVE-2025-65363Same vendor: Ruijie
CVE-2024-6269Same vendor: Ruijie
CVE-2025-9424Same vendor: Ruijie
CVE-2023-34644Same product: Ruijie Rg-Eg105G-E
CVE-2025-56095Same product: Ruijie Rg-Eap602
CVE-2025-56090Same product: Ruijie Rg-Ew1200G Pro
CVE-2025-56085Same product: Ruijie Rg-Ew1200
CVE-2025-56123Same product: Ruijie Rg-Ew1200G Pro
CVE-2025-56093Same product: Ruijie Rg-Eap602

Affected Assets

ruijie
rg-ew1200 firmware
3.0\(1\)b11p219
ruijie
rg-ew1200g pro firmware
3.0\(1\)b11p219
ruijie
rg-ew1200r firmware
3.0\(1\)b11p219
ruijie
rg-ew1300g firmware
3.0\(1\)b11p219
ruijie
rg-ew1800gx pro firmware
3.0\(1\)b11p219
ruijie
rg-ew3000gx pro firmware
3.0\(1\)b11p219
ruijie
rg-ew300 pro firmware
3.0\(1\)b11p219
ruijie
rg-ew300r firmware
3.0\(1\)b11p219
ruijie
rg-ew3200gx pro firmware
3.0\(1\)b11p219
ruijie
rg-nb3200-24gt4xs firmware
3.0\(1\)b11p219
+86 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.3
  • V1.2.5
  • V1.2.8
  • V1.2.9

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and neutralization that prevent command injection.

DE.CM-09 partial match
prevents

Runtime monitoring of software and data can detect anomalous command execution resulting from injection.

ID.RA-01 partial match
prevents

Identifying recorded vulnerabilities enables remediation of command-injection flaws before exploitation.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding standards require proper escaping and parameterization of commands, directly eliminating CWE-77.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development catches command-injection vulnerabilities before release.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and command construction practices that directly prevent command injection.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for controls against injection flaws including command injection.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles reduce the attack surface but do not prescribe the specific neutralization techniques needed.

A.8.31 Separation of development, test and production environments none match
none

Environment separation limits the blast radius of an exploited command injection but does not prevent the flaw itself.

References