CVE-2020-7352
Due to the software shipping with embedded, static RSA private key, an attacker with this key material and local user permissions can effectively send any operating system command to the service for execution in this elevated context.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The GalaxyClientService component of GOG Galaxy runs with elevated SYSTEM privileges in a Windows environment. Due to the software shipping with embedded, static RSA private key, an attacker with this key material and local user permissions can effectively send any operating system command to the service for execution in this elevated context. The service listens for such commands on a locally-bound network port, localhost:9978. A Metasploit module has been published which exploits this vulnerability. This issue affects the 2.0.x branch of the software (2.0.12 and earlier) as well as the 1.2.x branch (1.2.64 and earlier). A fix was issued for the 2.0.x branch of the affected software.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 3.78% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264, CWE-798
- Affected
- gog/galaxy
- Source
- cve@rapid7.com
References
- https://github.com/rapid7/metasploit-framework/pull/13444Patch, Third Party Advisory
- https://www.positronsecurity.com/blog/2020-04-28-gog-galaxy-client-local-privilege-escalation/Exploit, Third Party Advisory
- https://github.com/rapid7/metasploit-framework/pull/13444Patch, Third Party Advisory
- https://www.positronsecurity.com/blog/2020-04-28-gog-galaxy-client-local-privilege-escalation/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.