CVE-2023-32271Public exploitNetwork attack vector

Authenticated filesystem disclosure via remote file browser

Published Sep 5, 2023 · Updated Feb 13, 2025

Information disclosure in OAS Engine configuration management in OAS Platform 18.00.0072 allows remote authenticated users to list files. The Browse_File handler accepts an absolute DirectoryPath and file filter in a protobuf request, then returns accessible drives, directories, and filenames. A valid OAS application credential is required, but its permissions are not bounded by the underlying host account, exposing every path readable by the OAS Engine service account.

CVSS severity6.5
Medium
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in OAS Engine configuration management in OAS Platform 18.00.0072 allows remote authenticated users to list files. The Browse_File handler accepts an absolute DirectoryPath and file filter in a protobuf request, then returns accessible drives, directories, and filenames. A valid OAS application credential is required, but its permissions are not bounded by the underlying host account, exposing every path readable by the OAS Engine service account.

The record

CVE
CVE-2023-32271
Published
Sep 5, 2023
Updated
Feb 13, 2025
Vendor
Open Automation Software
Product
OAS Platform
Classifications
CWE-200, T1083
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=v18.00.0072

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open Automation Software · OAS Platformversion=v18.00.0072

Published CVSS scores

6.5Cisco TalosCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Information Exposure
T1083File and Directory Discovery

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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