Permissions, Privileges, and Access Controls in Steam - CVE-2015-7985
Published: November 24, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40589
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-7985
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
Valve Steam 2.10.91.91 uses weak permissions (Users: read and write) for the Install folder, which allows local users to gain privileges via a Trojan horse steam.exe file.
Affected software
Steam
How to mitigate CVE-2015-7985
Install update from vendor's website.