PT-2021-11390 · Arenanet · Guild Wars 2

George Tsimpidas · Published 2021-06-09 · Updated 2021-06-16 · CVE-2020-27384

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Guild Wars 2 launcher version 106916

Description: The issue arises from improper permissions set on the Guild Wars 2 directory and its contents, allowing any authenticated user to modify files, including the Gw2-64.exe executable. This is due to the 'F' flag (Full Control) being set for the 'Everyone' group, making the directory and its files world-writable.

Recommendations: For Guild Wars 2 launcher version 106916, consider restricting the permissions on the Guild Wars 2 directory and its contents to prevent unauthorized modifications, specifically removing the 'F' flag (Full Control) for the 'Everyone' group.

Exploit

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2020-27384

Affected Products

Guild Wars 2

References · 3

• 🔥 https://github.com/FreySolarEye/CVE/blob/master/Guild%20Wars%202%20-%20Local%20Privilege%20Escalation · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-27384 · Security Note
• https://osv.dev/vulnerability/CVE-2020-27384 · Vendor Advisory