Vulnerability · Published Aug 21, 2020 · Assigned by mitre
CVE-2020-24574
High 7.8
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.6%top 49.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
References
- https://www.gog.com/galaxy x_refsource_MISC
- https://www.positronsecurity.com/blog/2020-08-13-gog-galaxy_client-local-privilege-escalation_deuce/ x_refsource_MISC
- https://github.com/jtesta/gog_galaxy_client_service_poc x_refsource_MISC
- https://github.com/jtesta/gog_galaxy_client_service_poc/issues/1#issuecomment-926932218 x_refsource_MISC