CVE-2023-27409

Authenticated file disclosure via mac path traversal

Published May 9, 2023 · Updated Jan 28, 2025

Path traversal in Siemens SCALANCE LPE9403 before 2.1 allows local users to read address files through an authenticated SSH session. The deviceinfo binary uses the untrusted mac parameter as a path component without restricting traversal outside the intended directory. A valid SSH account and control of the mac argument are required; disclosure is limited to files named address.

CVSS severity2.5
Low
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Siemens SCALANCE LPE9403 before 2.1 allows local users to read address files through an authenticated SSH session. The deviceinfo binary uses the untrusted mac parameter as a path component without restricting traversal outside the intended directory. A valid SSH account and control of the mac argument are required; disclosure is limited to files named address.

The record

CVE
CVE-2023-27409
Published
May 9, 2023
Updated
Jan 28, 2025
Vendor
Siemens
Product
SCALANCE LPE9403
Classifications
CWE-22, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 28, 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=All versions < V2.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SCALANCE LPE9403version=All versions < V2.1

Published CVSS scores

2.5Siemens AGCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/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.

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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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

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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