Trend Micro Antivirus 2020 on Mac symlink

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.
6.5$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Trend Micro Antivirus 2020 on Mac. Impacted is an unknown function. Executing a manipulation can lead to symlink. The identification of this vulnerability is CVE-2020-25776. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in Trend Micro Antivirus 2020 on Mac (Anti-Malware Software). This vulnerability affects an unknown code block. The manipulation with an unknown input leads to a symlink vulnerability. The CWE definition for the vulnerability is CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Trend Micro Antivirus for Mac 2020 (Consumer) is vulnerable to a symbolic link privilege escalation attack where an attacker could exploit a critical file on the system to escalate their privileges. 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 shared 10/02/2020 (Website). The advisory is shared for download at helpcenter.trendmicro.com. This vulnerability was named CVE-2020-25776 since 09/18/2020. The attack needs to be approached locally. The requirement for exploitation is a single authentication. 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 11/15/2020).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/18/2020 🔍
10/02/2020 +14 days 🔍
10/03/2020 +1 days 🔍
11/16/2020 +44 days 🔍

Sourcesinfo

Vendor: trendmicro.com

Advisory: helpcenter.trendmicro.com
Status: Not defined

CVE: CVE-2020-25776 (🔍)
GCVE (CVE): GCVE-0-2020-25776
GCVE (VulDB): GCVE-100-162244

Entryinfo

Created: 10/03/2020 06:34
Updated: 11/16/2020 10:09
Changes: 10/03/2020 06:34 (36), 10/03/2020 06:39 (4), 11/15/2020 10:17 (4), 11/16/2020 10:09 (14)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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