Advisory Details

January 29th, 2021

Trend Micro Apex One Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-21-118
ZDI-CAN-11895

CVE ID CVE-2021-25248
CVSS SCORE 2.5, (AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N)
AFFECTED VENDORS Trend Micro
AFFECTED PRODUCTS Apex One
VULNERABILITY DETAILS

This vulnerability allows local attackers to disclose sensitive information 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 TmCCSF.exe. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities 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/000284202
DISCLOSURE TIMELINE
  • 2020-09-23 - Vulnerability reported to vendor
  • 2021-01-29 - Coordinated public release of advisory
CREDIT Lynn and Jay Lo
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