SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2020-8599

Trend Micro Apex One and OfficeScan Authentication Bypass Vulnerability

KEVCRITICAL 9.8EPSS 11.9%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

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 path on affected installations and bypass ROOT login. Authentication is not required to exploit this vulnerability.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
11.86% probability · 96th percentile
CISA KEV
Listed 3 November 2021 · due 3 May 2022
Affected
trendmicro/apex one · trendmicro/officescan
Source
security@trendmicro.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-8599

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.