4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
COMPLETE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:C/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
0.0004 Low
EPSS
Percentile
5.1%
An exploitable local privilege escalation vulnerability exists in the privileged helper tool of GOG Galaxy’s Games, version 1.2.47 for macOS. An attacker can globally create directories and subdirectories on the root file system, as well as change the permissions of existing directories.
Gog Galaxy 1.2.47 (macOS)
<https://www.gog.com/galaxy>
7.1 - CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
CWE-19: Improper Input Validation
GOG Galaxy is a platform that allows users to launch, update and manage video games. By default, GOG Galaxy installs a helper tool service with root privileges. This tool listens for connections and uses the provided protocol to dispatch functionality out.
The vulnerability arises in the createFolderAtPath
. This function takes a path as its first argument and creates a folder at that location. The function also builds any nested directories that are needed. These directories are owned by a root wheel, but have global read write and execute set abilities. This creates a privilege escalation vulnerability, allowing an attacker to modify the root file system.
2018-11-20 - Vendor Disclosure
2018-12-14 - Vendor Patched
2019-03-26 - Public Release
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
COMPLETE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:N/I:C/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
0.0004 Low
EPSS
Percentile
5.1%