Advisory Details

September 25th, 2020

Trend Micro Apex One Authentication Bypass Vulnerability

ZDI-20-1218
ZDI-CAN-10515

CVE ID CVE-2020-24563
CVSS SCORE 7.8, (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
AFFECTED VENDORS Trend Micro
AFFECTED PRODUCTS Apex One
VULNERABILITY DETAILS

This vulnerability allows local attackers to escalate privileges on affected installations of Trend Micro Apex One. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the ApexOne Security Agent. The issue results from allowing authentication to be bypassed via a modified client that omits the authentication check. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

ADDITIONAL DETAILS Trend Micro has issued an update to correct this vulnerability. More details can be found at:
https://success.trendmicro.com/solution/000271974
DISCLOSURE TIMELINE
  • 2020-04-14 - Vulnerability reported to vendor
  • 2020-09-25 - Coordinated public release of advisory
CREDIT @Kharosx0
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