CVE-2023-38751Network attack vector

Authenticated organization-information disclosure via improper API authorization

Published Aug 9, 2023 · Updated Oct 17, 2024

Improper authorization in SIG Network for Analysis and Liaison 4.4.0 through 4.7.7 allows remote authenticated users to view hidden organization data. The Information Provision function fails to enforce a receiver organization's non-disclosure setting before returning the associated organization information. Access requires authorized API credentials and exposes receiver-organization information only; no ability to modify data or interrupt the service is reported.

CVSS severity3.5
Low
EPSS probability0.45%
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 SIG Network for Analysis and Liaison 4.4.0 through 4.7.7 allows remote authenticated users to view hidden organization data. The Information Provision function fails to enforce a receiver organization's non-disclosure setting before returning the associated organization information. Access requires authorized API credentials and exposes receiver-organization information only; no ability to modify data or interrupt the service is reported.

The record

CVE
CVE-2023-38751
Published
Aug 9, 2023
Updated
Oct 17, 2024
Vendor
Japan Computer Emergency Response Team Coordination Center (JPCERT/CC)
Product
Special Interest Group Network for Analysis and Liaison
Classifications
CWE-285
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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=versions 4.4.0 to 4.7.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) · Special Interest Group Network for Analysis and Liaisonversion=versions 4.4.0 to 4.7.7

Published CVSS scores

3.5JPCERT/CC and IPA JVNCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
4.3NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0JPCERT/CC and IPA JVNAV:N/AC:L/Au:S/C:P/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

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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