CVE-2023-34834Public exploitNetwork attack vector

Unauthenticated database disclosure via exposed directory index

Published Jun 29, 2023 · Updated Nov 26, 2024

Directory browsing in the MCL-Net 4.3.5.8788 webserver allows remote attackers to read configured database details via /file. The default-port interface exposes directory indexes under /file without access control, including AdoInfo.txt files containing plaintext database connection strings. No authentication or user interaction is required; disclosure is limited to files reachable through the exposed directory tree.

CVSS severity5.3
Medium
EPSS probability3.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Directory browsing in the MCL-Net 4.3.5.8788 webserver allows remote attackers to read configured database details via /file. The default-port interface exposes directory indexes under /file without access control, including AdoInfo.txt files containing plaintext database connection strings. No authentication or user interaction is required; disclosure is limited to files reachable through the exposed directory tree.

The record

CVE
CVE-2023-34834
Published
Jun 29, 2023
Updated
Nov 26, 2024
Vendor
MCL Technologies
Product
MCL-Net
Classifications
CWE-552, T1083
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 26, 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=4.3.5.8788

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MCL Technologies · MCL-Netversion=4.3.5.8788

Published CVSS scores

5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties
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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