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Description

Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Deciso OPNsense. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of backup configuration files. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of root. Was ZDI-CAN-28133.

PUBLISHED Reserved 2025-11-25 | Published 2025-12-23 | Updated 2025-12-24 | Assigner zdi




MEDIUM: 4.5CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

Default status
unknown

25.7
affected

References

www.zerodayinitiative.com/advisories/ZDI-25-1022/ (ZDI-25-1022)

github.com/...ommit/cb15c935137d05c86a1e6cf12af877e9c32a23af (vendor-provided URL) vendor-advisory

cve.org (CVE-2025-13698)

nvd.nist.gov (CVE-2025-13698)

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Data based on CVE®. Copyright © 1999-2025, The MITRE Corporation. All rights reserved.