Service interruption via registry-directed log creation
Published Apr 14, 2021 · Updated Aug 3, 2024
Path manipulation in Razer Synapse 3 3.5.1030.101917 allows local users to interrupt services through a registry value. The privileged RzSDKService.exe service reads the user-writable ChromaBroadcast InstallPath value, appends a fixed Logs\RzSDKService.exe.log suffix, and creates the resulting log file. Exploitation requires a local low-privileged account and a service restart or system reboot; the demonstrated consequence is system instability, not control of the filename or initial contents.
Summary
What happened
Path manipulation in Razer Synapse 3 3.5.1030.101917 allows local users to interrupt services through a registry value. The privileged RzSDKService.exe service reads the user-writable ChromaBroadcast InstallPath value, appends a fixed Logs\RzSDKService.exe.log suffix, and creates the resulting log file. Exploitation requires a local low-privileged account and a service restart or system reboot; the demonstrated consequence is system instability, not control of the filename or initial contents.
The record
- CVE
- CVE-2021-30494
- Published
- Apr 14, 2021
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-276, T1112
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 14, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- VerSprite controlled file-creation proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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