CVE-2021-44736

Lexmark MC3224i Unprotected API Remote Code Execution Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The initial admin account setup wizard on Lexmark devices allow unauthenticated access to the “out of service erase” feature.

El asistente de configuración inicial de la cuenta de administrador en los dispositivos Lexmark permite el acceso no autenticado a la funcionalidad "out of service erase"

This vulnerability allows remote attackers to remove authentication on affected installations of Lexmark MC3224i printers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within URL handling. The issue results from the lack of proper restriction to a URL. An attacker can leverage this vulnerability to execute code in the context of root.

*Credits: David BERARD (@_p0ly_), Vincent FARGUES (@Karion_), Thomas IMBERT (@masthoon), from @Synacktiv

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-12-08 CVE Reserved
2022-01-20 CVE Published
2024-08-04 CVE Updated
2024-10-05 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-22-331	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.lexmark.com/alerts	2022-03-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Lexmark Search vendor "Lexmark"	Mc3224i Firmware Search vendor "Lexmark" for product "Mc3224i Firmware"	-	-	Affected	in	Lexmark Search vendor "Lexmark"	Mc3224i Search vendor "Lexmark" for product "Mc3224i"	-	-	Safe