CVE-2023-33253
Published: 12 June 2023
Summary
CVE-2023-33253 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Agilebio Labcollector. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 2.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
LabCollector versions 6.0 through 6.15 contain an unrestricted file upload vulnerability that permits remote code execution. The flaw resides in the message function and stems from insufficient validation of uploaded files, allowing names such as shell.jpg.php.shell to bypass checks and be treated as executable PHP.
An authenticated remote attacker with low privileges can exploit the issue over the network to upload a malicious PHP file and subsequently execute arbitrary system commands on the server, resulting in full compromise of confidentiality, integrity, and availability.
The associated EPSS score has remained at 0.4435 with no material increase after disclosure. Public references include a proof-of-concept repository and the vendor changelog, though no specific mitigation steps are detailed in the supplied information.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-37420
Vulnerability details
LabCollector 6.0 though 6.15 allows remote code execution. An authenticated remote low-privileged user can upload an executable PHP file and execute system commands. The vulnerability is in the message function, and is due to insufficient validation of the file (such…
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as shell.jpg.php.shell) being sent.
- 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.