What is the severity of ZDI-21-110?

The severity of ZDI-21-110 is high due to the potential for remote attackers to disclose sensitive information without authentication.

How do I fix ZDI-21-110?

To fix ZDI-21-110, update to the latest version of Trend Micro OfficeScan as recommended by the vendor.

What versions of Trend Micro OfficeScan are affected by ZDI-21-110?

ZDI-21-110 affects certain versions of Trend Micro OfficeScan, specifically those prior to the patched releases.

Is authentication required to exploit ZDI-21-110?

No, authentication is not required to exploit the vulnerability described in ZDI-21-110.

What is the attack vector for ZDI-21-110?

The attack vector for ZDI-21-110 is the web console, which listens on TCP port 4343 by default.

Vulnerability/
ZDI-21-110

medium

5.3

30/1/2025

ZDI-21-110: Trend Micro OfficeScan Improper Access Control Information Disclosure Vulnerability

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Trend Micro OfficeScan. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web console, which listens on TCP port 4343 by default. The issue results from improper access control. An attacker can leverage this vulnerability to disclose information from the application.

Affected Software	Affected Version	How to fix
Trend Micro OfficeScan XG

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Frequently Asked Questions

What is the severity of ZDI-21-110?
The severity of ZDI-21-110 is high due to the potential for remote attackers to disclose sensitive information without authentication.
How do I fix ZDI-21-110?
To fix ZDI-21-110, update to the latest version of Trend Micro OfficeScan as recommended by the vendor.
What versions of Trend Micro OfficeScan are affected by ZDI-21-110?
ZDI-21-110 affects certain versions of Trend Micro OfficeScan, specifically those prior to the patched releases.
Is authentication required to exploit ZDI-21-110?
No, authentication is not required to exploit the vulnerability described in ZDI-21-110.
What is the attack vector for ZDI-21-110?
The attack vector for ZDI-21-110 is the web console, which listens on TCP port 4343 by default.

agent/references
agent/type
agent/softwarecombine
agent/severity
agent/title
agent/description
agent/source
agent/tags
collector/zdi-advisory
source/ZDI
alias/ZDI-21-110
alias/ZDI-CAN-11635
alias/CVE-2021-25235
agent/software-canonical-lookup
agent/software-canonical-lookup-request
agent/event
vendor/trend micro
canonical/trend micro officescan xg

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Frequently Asked Questions

What is the severity of ZDI-21-110?
The severity of ZDI-21-110 is high due to the potential for remote attackers to disclose sensitive information without authentication.
How do I fix ZDI-21-110?
To fix ZDI-21-110, update to the latest version of Trend Micro OfficeScan as recommended by the vendor.
What versions of Trend Micro OfficeScan are affected by ZDI-21-110?
ZDI-21-110 affects certain versions of Trend Micro OfficeScan, specifically those prior to the patched releases.
Is authentication required to exploit ZDI-21-110?
No, authentication is not required to exploit the vulnerability described in ZDI-21-110.
What is the attack vector for ZDI-21-110?
The attack vector for ZDI-21-110 is the web console, which listens on TCP port 4343 by default.