CVE-2023-37831Public exploitNetwork attack vector

Authenticated account enumeration via profile response codes

Published Oct 31, 2023 · Updated Sep 12, 2024

Observable response discrepancy in Elenos ETG 150 firmware 3.12 allows remote authenticated users to enumerate user identifiers. The profile-edit REST endpoint returns HTTP 200 for an accessible account, 302 for an existing but inaccessible account, and 404 for a nonexistent identifier. A low-privilege session is required, and the disclosed consequence is account identification and counting rather than access to profile data.

CVSS severity5.3
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Observable response discrepancy in Elenos ETG 150 firmware 3.12 allows remote authenticated users to enumerate user identifiers. The profile-edit REST endpoint returns HTTP 200 for an accessible account, 302 for an existing but inaccessible account, and 404 for a nonexistent identifier. A low-privilege session is required, and the disclosed consequence is account identification and counting rather than access to profile data.

The record

CVE
CVE-2023-37831
Published
Oct 31, 2023
Updated
Sep 12, 2024
Vendor
Elenos
Product
ETG 150
Classifications
CWE-204, T1087
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 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=3.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Elenos · ETG 150version=3.12

Published CVSS scores

5.3NIST NVDCVSS: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 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 exploitPublished

Weakness, pattern, technique

CWE-204Observable Response Discrepancy
T1087Account 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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