CVE-2023-52324
Published: 23 January 2024
Summary
CVE-2023-52324 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Trendmicro Apex Central. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 8.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-52324 is an unrestricted file upload vulnerability, tracked under CWE-434, that affects Trend Micro Apex Central. The flaw permits a remote attacker to create arbitrary files on affected installations. It carries a CVSS 3.1 base score of 8.8 and requires authentication, though any valid set of credentials is sufficient to trigger the issue.
An attacker who obtains low-privileged but valid credentials can send a crafted upload request over the network to write attacker-controlled files to the server. While the vulnerability does not directly execute code, the uploaded files can be leveraged in conjunction with a separate flaw to achieve arbitrary code execution, resulting in full confidentiality, integrity, and availability impact on the affected system.
Trend Micro has published solution 000296153 addressing the issue, and the Zero Day Initiative has released advisory ZDI-24-077 that includes technical details and remediation guidance. The EPSS score has remained low and stable near 0.07 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-56981
Vulnerability details
An unrestricted file upload vulnerability in Trend Micro Apex Central could allow a remote attacker to create arbitrary files on affected installations. Please note: although authentication is required to exploit this vulnerability, this vulnerability could be exploited when the attacker…
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has any valid set of credentials. Also, this vulnerability could be potentially used in combination with another vulnerability to execute arbitrary code.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.