CVE-2022-28743

Severity Score

6.6

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Time-of-check Time-of-use (TOCTOU) Race Condition vulerability in Foscam R2C IP camera running System FW <= 1.13.1.6, and Application FW <= 2.91.2.66, allows an authenticated remote attacker with administrator permissions to execute arbitrary remote code via a malicious firmware patch. The impact of this vulnerability is that the remote attacker could gain full remote access to the IP camera and the underlying Linux system with root permissions. With root access to the camera's Linux OS, an attacker could effectively change the code that is running, add backdoor access, or invade the privacy of the user by accessing the live camera stream.

Una vulnerabilidad de Condición de Carrera del Tiempo de Comprobación (TOCTOU) en la cámara IP Foscam R2C ejecutando el sistema FW versiones anteriores a 1.13.1.6 incluyéndola, y la aplicación FW versiones anteriores a 2.91.2.66 incluyéndola, permite a un atacante remoto autenticado con permisos de administrador ejecutar código remoto arbitrario por medio de un parche de firmware malicioso. El impacto de esta vulnerabilidad es que el atacante remoto podría conseguir acceso remoto completo a la cámara IP y al sistema Linux subyacente con permisos de root. Con el acceso root al sistema operativo Linux de la cámara, un atacante podría cambiar efectivamente el código que esta siendo ejecutando, añadir acceso de puerta trasera o invadir la privacidad del usuario al acceder a la transmisión en vivo de la cámara

*Credits: Sam Quinn from Trellix ATR

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-04-06 CVE Reserved
2022-04-21 CVE Published
2024-07-13 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

CAPEC

References (1)

URL	Tag	Source
https://www.trellix.com/en-us/about/newsroom/stories/threat-labs/keeping-a-critical-eye-on-iot-devices.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Foscam Search vendor "Foscam"	R2c Application Firmware Search vendor "Foscam" for product "R2c Application Firmware"	<= 2.91.2.66 Search vendor "Foscam" for product "R2c Application Firmware" and version " <= 2.91.2.66"	-	Affected	in	Foscam Search vendor "Foscam"	R2c Search vendor "Foscam" for product "R2c"	-	-	Safe
Foscam Search vendor "Foscam"	R2c System Firmware Search vendor "Foscam" for product "R2c System Firmware"	<= 1.13.1.6 Search vendor "Foscam" for product "R2c System Firmware" and version " <= 1.13.1.6"	-	Affected	in	Foscam Search vendor "Foscam"	R2c Search vendor "Foscam" for product "R2c"	-	-	Safe