CVE-2022-47631: Race Condition

Published Sep 14, 2023
·
Updated

Razer Synapse through 3.7.1209.121307 allows privilege escalation due to an unsafe installation path and improper privilege management. Attackers can place DLLs into %PROGRAMDATA%\Razer\Synapse3\Service\bin if they do so before the service is installed and if they deny write access for the SYSTEM user. Although the service will not start if it detects malicious DLLs in this directory, attackers can exploit a race condition and replace a valid DLL (i.e., a copy of a legitimate Razer DLL) with a malicious DLL after the service has already checked the file. As a result, local Windows users can abuse the Razer driver installer to obtain administrative privileges on Windows.

Affected Software

4 affected components
All of the following
Razer Synapse<3.8.0428.042117
Microsoft Windows
Razer Synapse<3.8.0428.042117
Microsoft Windows

Event History

Sep 14, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
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Frequently Asked Questions

1

What is the vulnerability ID for this Razer Synapse vulnerability?

The vulnerability ID for this Razer Synapse vulnerability is CVE-2022-47631.

2

What is the severity level of CVE-2022-47631?

CVE-2022-47631 has a severity level of high (7).

3

How does CVE-2022-47631 allow privilege escalation?

CVE-2022-47631 allows privilege escalation due to an unsafe installation path and improper privilege management.

4

How can attackers exploit CVE-2022-47631?

Attackers can place DLLs into %PROGRAMDATA%\Razer\Synapse3\Service\bin if they do so before the service is installed and if they deny write access for the SYSTEM user.

5

Are there any references available for CVE-2022-47631?

Yes, there are several references available for CVE-2022-47631. They include: http://packetstormsecurity.com/files/174696/Razer-Synapse-Race-Condition-DLL-Hijacking.html, http://seclists.org/fulldisclosure/2023/Sep/6, and https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-002.txt.

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