CVE-2021-28927

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The text-to-speech engine in libretro RetroArch for Windows 1.9.0 passes unsanitized input to PowerShell through platform_win32.c via the accessibility_speak_windows function, which allows attackers who have write access on filesystems that are used by RetroArch to execute code via command injection using specially a crafted file and directory names.

El motor de text-to-speech en libretro RetroArch para Windows versión 1.9.0 pasa la entrada no saneada a PowerShell mediante el archivo platform_win32.c por medio de la función accessibility_speak_windows, que permite a atacantes que presentan acceso de escritura en los sistemas de archivos que usa RetroArch para ejecutar código por medio de la inyección de comandos usando especialmente un nombres de archivos y directorios diseñados

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-19 CVE Reserved
2021-04-07 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC
http://libretro.com	2024-08-03
https://labs.bishopfox.com/advisories/retroarch-for-windows-version-1.9.0	2024-08-03

URL	Date	SRC
https://github.com/libretro/RetroArch/blob/d3dc3ee989ec6a4903c689907ffc47027f71f776/frontend/drivers/platform_win32.c	2022-06-28

URL	Date	SRC
http://retroarch.com	2022-06-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Libretro Search vendor "Libretro"	Retroarch Search vendor "Libretro" for product "Retroarch"	>= 1.9.0 <= 1.9.4 Search vendor "Libretro" for product "Retroarch" and version " >= 1.9.0 <= 1.9.4"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe