Epic Games Launcher up to 8.2.1 com.epicgames.launcher Protocol command injection

Summaryinfo

A vulnerability marked as critical has been reported in Epic Games Launcher up to 8.2.1. This issue affects some unknown processing of the component com.epicgames.launcher Protocol Handler. The manipulation leads to command injection. This vulnerability is documented as CVE-2018-17707. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Epic Games Launcher up to 8.2.1. It has been rated as critical. This issue affects an unknown code of the component com.epicgames.launcher Protocol Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Epic Games Launcher versions prior to 8.2.2. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handler for the com.epicgames.launcher protocol. A crafted URI with the com.epicgames.launcher protocol can trigger execution of a system call composed from a user-supplied string. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-7241.

The bug was discovered 11/23/2018. The weakness was released 01/24/2019 (Website). It is possible to read the advisory at zerodayinitiative.com. The identification of this vulnerability is CVE-2018-17707 since 09/28/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 61 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 8.2.2 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• Epic Games

Name

• Launcher

Version

• 8.2.0
• 8.2.1

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion