CVE-2020-8599KEV · OVERDUE

Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability

Critical · published March 18, 2020

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 96.1th percentile for exploit probability.

1634
days past CISA
deadline
CVSS v3.1
9.8
EPSS
12%
Percentile
96.1
In the wild
Confirmed
What it is

🚨 A single vulnerable EXE is a hacker's golden ticket! This flaw in Trend Micro Apex One and OfficeScan XG server allows remote attackers to bypass ROOT login and write data anywhere without authentication. 🔥 Think of it like a security guard at a hotel who not only lets guests in without checking IDs but also hands over the master key to any room! This vulnerability creates an open door for attackers to waltz right in and do as they please. An attacker could exploit this vulnerability to gain unauthorized access to sensitive files, modify configurations, or install malicious software, potentially leading to a complete system compromise. The consequences could be absolutely devastating, leaving critical systems vulnerable to data breaches and manipulation.

Put simply

Think of it like a security guard at a hotel who not only lets guests in without checking IDs but also hands over the master key to any room! This vulnerability creates an open door for attackers to waltz right in and do as they please. CVE-2020-8599 allows remote attackers to write arbitrary data to any path on affected Trend Micro installations because of a vulnerable executable file, bypassing any authentication checks normally in place.

What to do

An attacker could exploit this vulnerability to gain unauthorized access to sensitive files, modify configurations, or install malicious software, potentially leading to a complete system compromise. The consequences could be absolutely devastating, leaving critical systems vulnerable to data breaches and manipulation. Immediate action is crucial! Ensure you update to the patched version of Trend Micro Apex One and OfficeScan XG to address this flaw. Also, review your firewall settings to limit access to the affected servers until patching is complete. You've got this! Fixing this vulnerability will bolster your defenses and keep your systems safe. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.11858 · 96.1th percentile
Published
2020-03-18T00:30Z
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
  • 18 MAR 00:30Z
    Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that could allow a remote attacker to write arbitrary data to an arbitrary…
    cvelistv5