CVE-2024-4163

Root access via privileged limited-shell file functions

Published Apr 26, 2024 · Updated Aug 1, 2024

Privilege escalation in Skylab IIoT Gateway (IGX) 1.2.12 allows remote authenticated users on an adjacent network to obtain root access. The IGX limited-shell process runs with root privileges and exposes file execution and download functions that can read, write, or replace arbitrary operating-system files. A limited-shell account is required; replacing /etc/passwd with an entry for a new root user permits unrestricted login and full control of the gateway.

CVSS severity8.0
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Skylab IIoT Gateway (IGX) 1.2.12 allows remote authenticated users on an adjacent network to obtain root access. The IGX limited-shell process runs with root privileges and exposes file execution and download functions that can read, write, or replace arbitrary operating-system files. A limited-shell account is required; replacing /etc/passwd with an entry for a new root user permits unrestricted login and full control of the gateway.

The record

CVE
CVE-2024-4163
Published
Apr 26, 2024
Updated
Aug 1, 2024
Vendor
Skylab
Product
IIoT Gateway (IGX)
Classifications
CWE-862, CAPEC-233, T1098
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=1.2.12

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Skylab · IIoT Gateway (IGX)version=1.2.12

Published CVSS scores

8.0Government Technology Agency of Singapore Cyber Security GroupCVSS:3.1/AV:A/AC:L/PR:L/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-233Privilege Escalation
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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