CVE-2024-31226: sunshine — Fix

Description

Sunshine is a self-hosted game stream host for Moonlight. Users who ran Sunshine versions 0.17.0 through 0.22.2 as a service on Windows may be impacted when terminating the service if an attacked placed a file named `C:\Program.exe`, `C:\Program.bat`, or `C:\Program.cmd` on the user's computer. This attack vector isn't exploitable unless the user has manually loosened ACLs on the system drive. If the user's system locale is not English, then the name of the executable will likely vary. Version 0.23.0 contains a patch for the issue. Some workarounds are available. One may identify and block potentially malicious software executed path interception by using application control tools, like Windows Defender Application Control, AppLocker, or Software Restriction Policies where appropriate. Alternatively, ensure that proper permissions and directory access control are set to deny users the ability to write files to the top-level directory `C:`. Require that all executables be placed in write-protected directories.

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CVSS v3.1 Score

4.9

MEDIUM

CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:H

Weakness Type (CWE)

CWE-428 CWE-428

Affected Products

Vendor	Product	Versions
lizardbyte	sunshine	0.17.0 — 0.23.0

References

Advisories & Patches

https://github.com/LizardByte/Sunshine/commit/93e622342c4f3e9b34f5f265039b6775b8e33a7a https://github.com/LizardByte/Sunshine/pull/2379 https://github.com/LizardByte/Sunshine/security/advisories/GHSA-r3rw-mx4q-7vfp https://github.com/LizardByte/Sunshine/commit/93e622342c4f3e9b34f5f265039b6775b8e33a7a https://github.com/LizardByte/Sunshine/pull/2379 https://github.com/LizardByte/Sunshine/security/advisories/GHSA-r3rw-mx4q-7vfp

Frequently Asked Questions

What is CVE-2024-31226? +

Sunshine is a self-hosted game stream host for Moonlight. Users who ran Sunshine versions 0.17.0 through 0.22.2 as a service on Windows may be impacted when terminating the service if an attacked placed a file named `C:\Program.exe`, `C:\Program.bat`, or `C:\Program.cmd` on the user's computer. This attack vector isn't exploitable unless the user has manually loosened ACLs on the system drive. If the user's system locale is not English, then the name of the executable will likely vary. Version 0.23.0 contains a patch for the issue. Some workarounds are available. One may identify and block potentially malicious software executed path interception by using application control tools, like Windows Defender Application Control, AppLocker, or Software Restriction Policies where appropriate. Alternatively, ensure that proper permissions and directory access control are set to deny users the ability to write files to the top-level directory `C:`. Require that all executables be placed in write-protected directories. It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2024-31226? +

CVE-2024-31226 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-31226? +

CVE-2024-31226 affects products from lizardbyte, specifically: sunshine. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-31226? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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