CVE-2024-5623

Local cross-user code execution via mishandled search paths

Published Aug 29, 2024 · Updated Aug 29, 2024

Untrusted search path handling in B&R APROL R 4.4-00P3 and earlier allows local users to execute code with another user's privileges. APROL insufficiently handles search paths involving environment variables, so a crafted malicious script can run when invoked with higher privileges. A low-privileged APROL account and another user's action are required; successful exploitation runs attacker-controlled code under that user's privileges.

CVSS severity5.4
Medium
EPSS probability0.17%
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

Untrusted search path handling in B&R APROL R 4.4-00P3 and earlier allows local users to execute code with another user's privileges. APROL insufficiently handles search paths involving environment variables, so a crafted malicious script can run when invoked with higher privileges. A low-privileged APROL account and another user's action are required; successful exploitation runs attacker-controlled code under that user's privileges.

The record

CVE
CVE-2024-5623
Published
Aug 29, 2024
Updated
Aug 29, 2024
Vendor
B&R Industrial Automation
Product
APROL
Classifications
CWE-250, CWE-267, CWE-426, T1574.007
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 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=0 <=r4.4-00p3
  2. Affected versionversion=0 <=<= R 4.4-00P3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

B&R Industrial Automation · APROLversion=0 <=r4.4-00p3; version=0 <=<= R 4.4-00P3

Published CVSS scores

6.4B&R Industrial AutomationCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
5.4Asea Brown Boveri Ltd. (ABB)CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.3B&R Industrial AutomationCVSS:3.1/AV:L/AC:L/PR:L/UI:R/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-250Execution with Unnecessary Privileges
CWE-267Privilege Defined With Unsafe Actions
CWE-426Untrusted Search Path
T1574.007Path Interception by PATH Environment Variable

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

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