CVE-2022-27249
Published: 03 April 2022
Summary
CVE-2022-27249 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Idearespa Reftree. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 9.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
An unrestricted file upload vulnerability exists in IdeaRE RefTree versions prior to 2021.09.17. The flaw, tracked as CWE-434, resides in the UploadDwg functionality and permits remote authenticated users to place arbitrary files, including crafted ASPX payloads, directly into the web root directory.
Authenticated attackers with network access can leverage the issue to upload a malicious ASPX file and subsequently execute arbitrary code on the server by requesting the uploaded resource. The vulnerability carries a CVSS 3.1 score of 8.8, reflecting high impact to confidentiality, integrity, and availability without requiring user interaction.
Public references include a PacketStorm exploit archive demonstrating the upload technique and the vendor site at idearespa.eu; no separate mitigation statements or patch advisories are provided in the available references. The associated EPSS score has remained flat at 0.0524 with no material increase observed after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-31758
Vulnerability details
An unrestricted file upload vulnerability in IdeaRE RefTree before 2021.09.17 allows remote authenticated users to execute arbitrary code by using UploadDwg to upload a crafted aspx file to the web root, and then visiting the URL for this aspx resource.
- 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.