Vulnerability Details CVE-2020-24574
The client (aka GalaxyClientService.exe) in GOG GALAXY through 2.0.41 (as of 12:58 AM Eastern, 9/26/21) allows local privilege escalation from any authenticated user to SYSTEM by instructing the Windows service to execute arbitrary commands. This occurs because the attacker can inject a DLL into GalaxyClient.exe, defeating the TCP-based "trusted client" protection mechanism.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.0%
CVSS Severity
CVSS v3 Score 7.8
CVSS v2 Score 6.9
References
- https://github.com/jtesta/gog_galaxy_client_service_poc
- https://github.com/jtesta/gog_galaxy_client_service_poc/issues/1#issuecomment-926932218
- https://www.gog.com/galaxy
- https://www.positronsecurity.com/blog/2020-08-13-gog-galaxy_client-local-privilege-escalation_deuce/
- https://github.com/jtesta/gog_galaxy_client_service_poc
- https://github.com/jtesta/gog_galaxy_client_service_poc/issues/1#issuecomment-926932218
- https://www.gog.com/galaxy
- https://www.positronsecurity.com/blog/2020-08-13-gog-galaxy_client-local-privilege-escalation_deuce/
Products affected by CVE-2020-24574
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cpe:2.3:a:gog:galaxy:2.0.13
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cpe:2.3:a:gog:galaxy:2.0.14
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cpe:2.3:a:gog:galaxy:2.0.15
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cpe:2.3:a:gog:galaxy:2.0.17
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cpe:2.3:a:gog:galaxy:2.0.19
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cpe:2.3:a:gog:galaxy:2.0.28.9