2021-32463 | Trend Micro Apex One permission

CVSS Meta Temp Score

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Current Exploit Price (≈)

Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.

CTI Interest Score

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4.2 $0-$5k 0.19

A vulnerability, which was classified as critical, has been found in Trend Micro Apex One, Apex One as a Service, Worry-Free Business Security and Worry-Free Services (affected version not known). Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is integrity, and availability. CVE summarizes:

An incorrect permission assignment denial-of-service vulnerability in Trend Micro Apex One, Apex One as a Service (SaaS), Worry-Free Business Security 10.0 SP1 and Worry-Free Servgices could allow a local attacker to escalate privileges and delete files with system privileges on affected installations. Please note: an attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The weakness was published 07/21/2021. The advisory is shared for download at zerodayinitiative.com. This vulnerability is handled as CVE-2021-32463 since 05/07/2021. The exploitation is known to be easy. The attack needs to be approached locally. A simple authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/26/2021). The MITRE ATT&CK project declares the attack technique as T1222.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at success.trendmicro.com.



VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

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Vector Complexity Authentication Confidentiality Integrity Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Privilege escalation
CWE: CWE-275
ATT&CK: T1222

Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: success.trendmicro.com

05/07/2021 CVE assigned
07/21/2021 +75 days Advisory disclosed
07/21/2021 +0 days VulDB entry created
07/26/2021 +5 days VulDB last updateVendor: https://www.trendmicro.com/

Advisory: zerodayinitiative.com
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2021-32463 (🔒)

Created: 07/21/2021 11:58
Updated: 07/26/2021 07:30
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍


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