CVE-2021-31784

Siemens JT2Go DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An out-of-bounds write vulnerability exists in the file-reading procedure in Open Design Alliance Drawings SDK before 2021.6 on all supported by ODA platforms in static configuration. This can allow attackers to cause a crash, potentially enabling a denial of service attack (Crash, Exit, or Restart) or possible code execution.

Se presenta una vulnerabilidad de escritura fuera de límites en el procedimiento de lectura de archivos en Open Design Alliance Drawings SDK versiones anteriores a 2021.6. En todas las plataformas compatibles con ODA en configuración estática. Esto puede permitir a atacantes causar un bloqueo, potencialmente habilitando un ataque de denegación de servicio (Bloqueo, Salida o Reinicio) o una posible ejecución de código

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Siemens JT2Go. 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 parsing of DXF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-23 CVE Reserved
2021-04-26 CVE Published
2024-05-13 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://cert-portal.siemens.com/productcert/pdf/ssa-155599.pdf	2022-04-15

URL	Date	SRC
https://www.opendesign.com/security-advisories	2022-04-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opendesign Search vendor "Opendesign"		Drawings Sdk Search vendor "Opendesign" for product "Drawings Sdk"				< 2021.6 Search vendor "Opendesign" for product "Drawings Sdk" and version " < 2021.6"		-		Affected
Siemens Search vendor "Siemens"		Comos Search vendor "Siemens" for product "Comos"				< 10.4.1 Search vendor "Siemens" for product "Comos" and version " < 10.4.1"		-		Affected