(0Day) Epic Games Launcher Link Following Denial-of-Service Vulnerability
Vulnerability Details
This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Epic Games Launcher. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the Epic Games installer. By creating a symbolic link, an attacker can abuse the installer to overwrite a file. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Additional Details
This vulnerability is being disclosed publicly without a patch in accordance with the ZDI 120 day deadline.
08/11/21 – ZDI reported the vulnerabilities to vendor
02/22/22 – ZDI requested an update
03/16/22 – ZDI notified the vendor of the intention to publish the cases as 0-day advisories on 03/24/22
-- Mitigation:
Given the nature of the vulnerability the only salient mitigation strategy is to restrict interaction with the application.
Disclosure Timeline
- 2021-08-11 - Vulnerability reported to vendor
- 2022-03-24 - Coordinated public release of advisory
- 2022-03-29 - Advisory Updated
Credit
Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative
