CVE-2019-18187KEV · OVERDUE

Trend Micro OfficeScan Directory Traversal Vulnerability

High · published October 28, 2019

Patch now

Confirmed exploited, and the score agrees

CVSS calls it high at 8.8. It is confirmed in active exploitation. It sits in the 97.9th percentile for exploit probability.

1635
days past CISA
deadline
CVSS v3.1
8.8
EPSS
25%
Percentile
97.9
In the wild
Confirmed
What it is

⚡ An exploitable directory traversal vulnerability in Trend Micro OfficeScan could let attackers extract files from your server's zip archives! 🔥 Think of this vulnerability like a sneaky delivery driver who knows how to bypass the reception desk and go directly to your filing cabinets — they can grab anything they want without being stopped! If an attacker gains access, they could retrieve sensitive files, potentially leading to remote code execution on your server. This could open the door for unauthorized control over your system, putting your organization at serious risk.

Put simply

Think of this vulnerability like a sneaky delivery driver who knows how to bypass the reception desk and go directly to your filing cabinets — they can grab anything they want without being stopped! This vulnerability allows authenticated users to exploit a directory traversal flaw, enabling them to extract files from arbitrary zip archives to a specific folder on the OfficeScan server, which could lead to remote code execution.

What to do

If an attacker gains access, they could retrieve sensitive files, potentially leading to remote code execution on your server. This could open the door for unauthorized control over your system, putting your organization at serious risk. To protect your systems, update OfficeScan to the latest version immediately. Review user permissions and limit access to only those who absolutely need it. Regularly audit your zip file handling and ensure secure configurations are in place. You’ve got this! Follow these steps, and you’ll strengthen your defenses in no time! 🛡️

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.25125 · 97.9th percentile
Published
2019-10-28T19:28Z
KEV added
2021-11-03 · due 2022-05-03
EPSS history
Timeline
  • 03 NOV 00:00Z
    Added to CISA KEV — remediate by May 3
    kev
  • 28 OCT 19:28Z
    Trend Micro OfficeScan versions 11.0 and XG (12.0) could be exploited by an attacker utilizing a directory traversal vulnerability to extract files from an…
    cvelistv5