CVE-2023-38379Public exploitNetwork attack vector

Unauthenticated command execution via zero-length password check

Published Jul 16, 2023 · Updated Oct 30, 2024

Command injection in RIGOL MSO5000 firmware 00.01.03.00.03 allows remote attackers to execute commands through Web Control. In changepwd.cgi, cgiMain uses strlen(pass0) as strncmp's comparison length, so an empty old-password value makes the check succeed, then interpolates pass1 into a shell command passed to system(). No credentials or user interaction are required; a crafted HTTP request can replace the administrator password or run arbitrary commands on the instrument.

CVSS severity7.5
High
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in RIGOL MSO5000 firmware 00.01.03.00.03 allows remote attackers to execute commands through Web Control. In changepwd.cgi, cgiMain uses strlen(pass0) as strncmp's comparison length, so an empty old-password value makes the check succeed, then interpolates pass1 into a shell command passed to system(). No credentials or user interaction are required; a crafted HTTP request can replace the administrator password or run arbitrary commands on the instrument.

The record

CVE
CVE-2023-38379
Published
Jul 16, 2023
Updated
Oct 30, 2024
Vendor
RIGOL Technologies
Product
RIGOL MSO5000
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 30, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=00.01.03.00.03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

RIGOL Technologies · RIGOL MSO5000version=00.01.03.00.03

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo