CVE-2023-38095
Published: 03 May 2024
Summary
CVE-2023-38095 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Netgear Prosafe Network Management System. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 4.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-38095 is an unrestricted file upload vulnerability in the MFileUploadController class of NETGEAR ProSAFE Network Management System. The flaw stems from insufficient validation of user-supplied data during file uploads and permits remote code execution on affected installations. Although the vulnerability requires authentication, the existing mechanism can be bypassed, enabling an attacker to run arbitrary code in the context of the SYSTEM account. The issue was originally reported as ZDI-CAN-19717 and carries a CVSS 3.1 base score of 8.8.
Remote attackers who can reach the management interface may exploit the weakness to upload malicious files and achieve code execution without valid credentials. Successful exploitation grants full control over the affected system, including the ability to install additional tools, modify data, or pivot within the network.
NETGEAR has published security advisory PSV-2023-0024 addressing this and related issues in ProSAFE Network Management System; the advisory and corresponding Zero Day Initiative report ZDI-23-921 direct administrators to apply the vendor-supplied updates available through the NETGEAR knowledge base. The EPSS score has remained flat at 0.1909 since disclosure, indicating no material increase in observed exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-41921
Vulnerability details
NETGEAR ProSAFE Network Management System MFileUploadController Unrestricted File Upload Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of NETGEAR ProSAFE Network Management System. Although authentication is required to exploit this vulnerability, the…
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existing authentication mechanism can be bypassed. The specific flaw exists within the MFileUploadController class. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-19717.
- 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.