CVE-2023-36611Network attack vector

Privileged file disclosure via cross-account security tokens

Published Jul 3, 2023 · Updated Oct 25, 2024

Improper authorization in Ovarro TBox RTU firmware 1.50.598 and earlier allows remote authenticated users to read privileged files over SSH. The RTU exposes higher-privilege software security tokens to low-privilege accounts because token authorization and file permissions do not isolate privilege levels. A user-level account and SSH access are required; supplying another account's token permits reading application source code and other files restricted to higher privileges.

CVSS severity6.5
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Ovarro TBox RTU firmware 1.50.598 and earlier allows remote authenticated users to read privileged files over SSH. The RTU exposes higher-privilege software security tokens to low-privilege accounts because token authorization and file permissions do not isolate privilege levels. A user-level account and SSH access are required; supplying another account's token permits reading application source code and other files restricted to higher privileges.

The record

CVE
CVE-2023-36611
Published
Jul 3, 2023
Updated
Oct 25, 2024
Vendor
Ovarro
Product
TBox MS-CPU32-S2
Classifications
CWE-285, T1550
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 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=0 <=1.50.598

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ovarro · TBox MS-CPU32-S2version=0 <=1.50.598
Ovarro · TBox LT2version=0 <=1.50.598
Ovarro · TBox MS-CPU32version=0 <=1.50.598
Ovarro · TBox RM2version=0 <=1.50.598
Ovarro · TBox TG2version=0 <=1.50.598

Published CVSS scores

6.5ICS-CERTCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-285Improper Authorization
T1550Use Alternate Authentication Material

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

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Your stack

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