CVE-2023-30621Network attack vector

Root command execution via unvalidated ping target

Published Apr 21, 2023 · Updated Feb 4, 2025

OS command injection in Gunivers Gipsy before 1.3 allows remote attackers to execute arbitrary commands as root through the !ping command. The ping_adress path incorporates the supplied IP or hostname into a Bash ping invocation without validating it as a legitimate address. Any user able to send !ping to the bot can run commands with the bot host's sudoer permissions, exposing host data and services.

CVSS severity9.8
Critical
EPSS probability1.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Gunivers Gipsy before 1.3 allows remote attackers to execute arbitrary commands as root through the !ping command. The ping_adress path incorporates the supplied IP or hostname into a Bash ping invocation without validating it as a legitimate address. Any user able to send !ping to the bot can run commands with the bot host's sudoer permissions, exposing host data and services.

The record

CVE
CVE-2023-30621
Published
Apr 21, 2023
Updated
Feb 4, 2025
Vendor
Gunivers
Product
Gipsy
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 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?

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

  1. Affected versionversion=< 1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Gunivers · Gipsyversion=< 1.3

Published CVSS scores

9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

No public exploit references are available in this record.

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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