2021-32463 | Trend Micro Apex One permission

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	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 Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
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.

Vendor

Name

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: 🔍

AV	AC	Au	C	I	A
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🔍	🔍	🔍	🔍	🔍	🔍
🔍	🔍	🔍	🔍	🔍	🔍

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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unlock	unlock	unlock	unlock	unlock	unlock
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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: 🔒

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

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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