CVE-2023-31472Public exploitNetwork attack vector

Authenticated arbitrary file overwrite via ping_addr injection

Published May 9, 2023 · Updated Jan 29, 2025

Command injection in GL.iNet router firmware 3.215 and earlier allows remote authenticated users to create or overwrite arbitrary files. The /api/internet/ping endpoint interpolates ping_addr into a shell command, but its metacharacter filter omits the > and < redirection operators. A valid API authentication token is required; redirecting ping output can truncate critical files such as /etc/shadow and render the device unusable.

CVSS severity7.5
High
EPSS probability19.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in GL.iNet router firmware 3.215 and earlier allows remote authenticated users to create or overwrite arbitrary files. The /api/internet/ping endpoint interpolates ping_addr into a shell command, but its metacharacter filter omits the > and < redirection operators. A valid API authentication token is required; redirecting ping output can truncate critical files such as /etc/shadow and render the device unusable.

The record

CVE
CVE-2023-31472
Published
May 9, 2023
Updated
Jan 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

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

Technologies

Your stack

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Your stack

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