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SECURITY BULLETIN: November 2020 Security Bulletin for Trend Micro OfficeScan XG SP1

    • Updated:
    • 1 Dec 2020
    • Product/Version:
    • OfficeScan XG
    • Platform:
Summary
Release Date: November 17, 2020
CVE Identifier(s): CVE-2020-24563 through 24565; CVE-2020-25770 through CVE-2020-25774; CVE-2020-28572, CVE-2020-28573, CVE-2020-28576, CVE-2020-28577, CVE-2020-28582, CVE-2020-28583
Platform(s): Windows
CVSS 3.0 Score(s): 3.3 - 7.8
Severity Rating(s): Low - High

Trend Micro has released a new Critical Patch (CP) for Trend Micro OfficeScan XG SP1. This CP resolves multiple vulnerabilities related to out-of-bounds read information disclosure, authentication bypass, local privilege escalation, improper access control information disclosure and issues with a server migration tool component.

Details
Public

Affected Version(s)

ProductAffected Version(s)PlatformLanguage(s)
OfficeScanXG SP1WindowsEnglish


Solution

Trend Micro has released the following solutions to address the issue:

ProductUpdated versionNotesPlatformAvailability
OfficeScanXG SP1 CP5702 *ReadmeWindowsNow Available

*Please note that some of the vulnerabilities were actually included in a previous CP (5698); however, there were some unrelated customer reported issues with this CP and it is highly suggested that customers obtain the latest CP that resolves those issues.

These are the minimum recommended version(s) of the patches and/or builds required to address the issue. Trend Micro highly encourages customers to obtain the latest version of the product if there is a newer one available than the one listed in this bulletin.

Customers are encouraged to visit Trend Micro’s Download Center to obtain prerequisite software (such as Service Packs) before applying any of the solutions above.


Vulnerability Details

CVE-2020-24563Authentication Bypass Vulnerability
CVSSv3: 7.8: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
A vulnerability in Trend Micro OfficeScan XG SP1 may allow a local attacker to manipulate the process of the security agent unload option (if configured), which then could be manipulated to gain a privilege escalation and code execution.

An attacker must first obtain the ability to execute low-privileged code on the target in order to exploit this vulnerability.

CVE-2020-24564, CVE-2020-24565, CVE-2020-25770, CVE-2020-25771, CVE-2020-25772Out-of-Bounds Read Information Disclosure Vulnerabilities
CVSSv3: 5.6: AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H/E:P/CR:L/IR:L/AR:L
Several out-of-bounds read information disclosure vulnerabilities in Trend Micro OfficeScan XG SP1 may allow a local attacker to disclose sensitive information to an unprivileged account on vulnerable installations of the product.

An attacker must first obtain the ability to execute low-privileged code on the target in order to exploit these vulnerabilities.

CVE-2020-25773ServerMigrationTool DAT File Parsing Double Free Remote Code Execution Vulnerability
CVSSv3: 7.8: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
A vulnerability in the Trend Micro OfficeScan XG SP1 ServerMigrationTool component could allow an attacker to execute arbitrary code on affected products.

User interaction is required to exploit this vulnerability in that the target must import a corrupted configuration file.

CVE-2020-25774ServerMigrationTool ZIP File Parsing Out-of-Bounds Read Information Disclosure Vulnerability
CVSSv3: 3.3: AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
A vulnerability in the Trend Micro OfficeScan XG SP1 ServerMigrationTool component could allow an attacker to trigger an out-of-bounds red information disclosure which would disclose sensitive information to an unprivileged account.

User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

CVE-2020-28572Local Privilege Escalation Vulnerability
CVSSv3: 5.7: AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
A vulnerability in Trend Micro OfficeScan XG SP1 could allow an unprivileged user to abuse the product installer to reinstall the agent with additional malicious code in the context of a higher privilege.

CVE-2020-28573, CVE-2020-28576, CVE-2020-28577, CVE-2020-28582, CVE-2020-28583Improper Access Control Information Disclosure Vulnerabilities 
CVSSv3: 5.3: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Improper access control information disclosure vulnerabilities in Trend Micro OfficeScan XG SP1 could allow an unauthenticated user to connect to the product server and reveal information such as the total agents managed by the server, version/build information and server hostname.


Mitigating Factors

Exploiting these type of vulnerabilities generally require that an attacker has access (physical or remote) to a vulnerable machine. In addition to timely application of patches and updated solutions, customers are also advised to review remote access to critical systems and ensure policies and perimeter security is up-to-date.

Newer versions of the operating system (e.g. Windows 10) may protect against some vulnerabilities such as hard link privilege escalations.

However, even though an exploit may require several specific conditions to be met, Trend Micro strongly encourages customers to update to the latest builds as soon as possible.


Acknowledgement

Trend Micro would like to thank the following individuals for responsibly disclosing these issues and working with Trend Micro to help protect our customers:


External Reference(s)

The following advisories may be found at Trend Micro's Zero Day Initiative Published Advisories site:
  • ZDI-20-1218
  • ZDI-20-1219
  • ZDI-20-1220
  • ZDI-20-1221
  • ZDI-20-1222
  • ZDI-20-1223
  • ZDI-20-1224
  • ZDI-20-1225
  • ZDI-20-1374
  • ZDI-20-1375
  • ZDI-20-1376
  • ZDI-20-1386
  • ZDI-20-1387
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Rating:
Category:
Update
Solution Id:
000281947
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