// For flags

CVE-2021-32940

Siemens JT2Go DWG File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

Severity Score

7.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An out-of-bounds read issue exists in the DWG file-recovering procedure in the Drawings SDK (All versions prior to 2022.5) resulting from the lack of proper validation of user-supplied data. This can result in a read past the end of an allocated buffer and allow attackers to cause a denial-of-service condition or read sensitive information from memory locations.

Se presenta un problema de lectura fuera de límites en el procedimiento de recuperación de archivos DWG en Drawings SDK (todas las versiones anteriores a 2022.4) resultando en una falta de comprobación apropiada de los datos suministrados por el usuario. Esto puede resultar en una lectura más allá del final de un búfer asignado y permitir a atacantes causar una condición de denegación de servicio o leer información confidencial de las ubicaciones de memoria

This vulnerability allows remote attackers to disclose sensitive information 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 DWG files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

*Credits: Mat Powell of Trend Micro Zero Day Initiative
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-05-13 CVE Reserved
  • 2021-06-17 CVE Published
  • 2024-03-02 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
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"
< 2022.5
Search vendor "Opendesign" for product "Drawings Sdk" and version " < 2022.5"
-
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
Siemens
Search vendor "Siemens"
Jt2go
Search vendor "Siemens" for product "Jt2go"
< 13.2.0.1
Search vendor "Siemens" for product "Jt2go" and version " < 13.2.0.1"
-
Affected
Siemens
Search vendor "Siemens"
Teamcenter Visualization
Search vendor "Siemens" for product "Teamcenter Visualization"
< 13.2.0.1
Search vendor "Siemens" for product "Teamcenter Visualization" and version " < 13.2.0.1"
-
Affected