Arbitrary Command Execution via Unescaped Filename in MISP STIX Import

CVE-2018-19908 · HIGH Severity

AV:N/AC:L/AU:S/C:C/I:C/A:C

An issue was discovered in MISP 2.4.9x before 2.4.99. In app/Model/Event.php (the STIX 1 import code), an unescaped filename string is used to construct a shell command. This vulnerability can be abused by a malicious authenticated user to execute arbitrary commands by tweaking the original filename of the STIX import.

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