CVE-2019-18189 — A directory traversal vulnerability in Trend Micro Apex One, OfficeScan (11

A directory traversal vulnerability in Trend Micro Apex One, OfficeScan (11.0, XG) and Worry-Free Business Security (9.5, 10.0) may allow an attacker to bypass authentication and log on to an affected product's management console as a root user. The vulnerability does not re

01What is this vulnerability?

A directory traversal vulnerability in Trend Micro Apex One, OfficeScan (11.0, XG) and Worry-Free Business Security (9.5, 10.0) may allow an attacker to bypass authentication and log on to an affected product's management console as a root user. The vulnerability does not require authentication.

02Affected products

Vendor	Product	Versions
Trend Micro	Trend Micro Apex One, Trend Micro OfficeScan (OSCE), Trend Micro Worry	Free Business Security (WFBS) — Apex One (All), OSCE (11.0, XG), WFBS (9.5, 10.0)

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-10-28T19:28:32.000Z
• Last modified: 2024-08-05T01:47:13.759Z

09References

• success.trendmicro.com — https://success.trendmicro.com/solution/000151732