Macro Expert up to 4.9.4 MacroService.exe default 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 (≈)
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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.
7.6$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Macro Expert up to 4.9.4. The impacted element is an unknown function of the file MacroService.exe. The manipulation leads to default permission. This vulnerability is uniquely identified as CVE-2024-27674. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Macro Expert up to 4.9.4 and classified as critical. This issue affects an unknown code of the file MacroService.exe. The manipulation with an unknown input leads to a default permission vulnerability. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Macro Expert through 4.9.4 allows BUILTIN\Users:(OI)(CI)(M) access to the "%PROGRAMFILES(X86)%\GrassSoft\Macro Expert" folder and thus an unprivileged user can escalate to SYSTEM by replacing the MacroService.exe binary.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2024-27674 since 02/26/2024. The exploitation is known to be easy. An attack has to be approached locally. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/27/2024). MITRE ATT&CK project uses the attack technique T1222 for this issue.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
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

02/26/2024 🔍
04/03/2024 +36 days 🔍
04/03/2024 +0 days 🔍
08/27/2024 +146 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2024-27674 (🔍)
GCVE (CVE): GCVE-0-2024-27674
GCVE (VulDB): GCVE-100-259277

Entryinfo

Created: 04/03/2024 20:12
Updated: 08/27/2024 16:41
Changes: 04/03/2024 20:12 (51), 08/27/2024 16:41 (12)
Complete: 🔍
Cache ID: 216::103

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