Arbitrary file upload in Trendmicro Apex One

CVE-2023-0587

A file upload vulnerability in exists in Trend Micro Apex One server build 11110. Using a malformed Content-Length header in an HTTP PUT message sent to URL /officescan/console/html/cgi/fcgiOfcDDA.exe, an unauthenticated remote attacker can upload arbitrary files to the SampleSubmission directory (i.e., \PCCSRV\TEMP\SampleSubmission) on the server. The attacker can upload a large number of large files to fill up the file system on which the Apex One server is installed.

Vulnerability class: Unrestricted File Upload

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.596 (99.1th percentile), scored .

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-0587: held from 0.596 to 0.596.

EPSS over last 30 days · oldest: 0.596 · newest: 0.596 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-0587?
CVE-2023-0587 is a critical-severity vulnerability in Trendmicro Apex One, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2023-02-01.
How severe is CVE-2023-0587?
Critical severity. CVSS v3 base score is 9.1 out of 10.