CVE-2021-3958Public exploitNetwork attack vector

Unauthenticated database extraction via unsanitized username

Published Nov 16, 2021 · Updated Sep 17, 2024

Blind SQL injection in Ipack SCADA Software before 1.1.0 allows remote attackers to extract database data through the login form. The unauthenticated /procedure_scripts/login_check.php handler uses an inadequately sanitized username parameter in a SQL query, enabling time-based inference. No account is required, but the public artifact demonstrates database enumeration rather than application takeover or operating-system code execution.

CVSS severity9.8
Critical
EPSS probability14.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind SQL injection in Ipack SCADA Software before 1.1.0 allows remote attackers to extract database data through the login form. The unauthenticated /procedure_scripts/login_check.php handler uses an inadequately sanitized username parameter in a SQL query, enabling time-based inference. No account is required, but the public artifact demonstrates database enumeration rather than application takeover or operating-system code execution.

The record

CVE
CVE-2021-3958
Published
Nov 16, 2021
Updated
Sep 17, 2024
Vendor
Ipack Automation Systems
Product
Ipack SCADA Software
Classifications
CWE-89, CAPEC-7, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 16, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record 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=unspecified <1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ipack Automation Systems · Ipack SCADA Softwareversion=unspecified <1.1.0

Published CVSS scores

9.8Computer Emergency Response Team of the Republic of TurkeyCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:P/A:P

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CAPEC-7Blind SQL Injection
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

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Your stack

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