CVE-2023-37306Public exploitNetwork attack vector

Administrator code execution via crafted certificate upload

Published Jun 30, 2023 · Updated Nov 27, 2024

Arbitrary code execution in MISP 2.4.172 allows remote authenticated users to execute PHP through a crafted server-sync certificate. ServersController::__saveCert derives the stored filename from an uploaded certificate extension and writes its contents without restricting that extension or validating an X.509 certificate. Administrator access is required, and successful exploitation executes code in the MISP service process context.

CVSS severity7.5
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary code execution in MISP 2.4.172 allows remote authenticated users to execute PHP through a crafted server-sync certificate. ServersController::__saveCert derives the stored filename from an uploaded certificate extension and writes its contents without restricting that extension or validating an X.509 certificate. Administrator access is required, and successful exploitation executes code in the MISP service process context.

The record

CVE
CVE-2023-37306
Published
Jun 30, 2023
Updated
Nov 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-209, T1068
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-209Generation of Error Message Containing Sensitive Information
T1068Exploitation for Privilege Escalation

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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