// For flags

CVE-2021-46156

Siemens Simcenter Femap NEU 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

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability has been identified in Simcenter Femap V2020.2 (All versions), Simcenter Femap V2021.1 (All versions). Affected application contains an out of bounds write past the end of an allocated structure while parsing specially crafted NEU files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-14684)

Se ha identificado una vulnerabilidad en Simcenter Femap versión V2020.2 (Todas las versiones), Simcenter Femap versión V2021.1 (Todas las versiones). La aplicación afectada contiene una escritura fuera de límites más allá del final de una estructura asignada mientras analiza archivos NEU especialmente diseñados. Esto podría permitir a un atacante ejecutar código en el contexto del proceso actual. (ZDI-CAN-14684)

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Siemens Simcenter Femap. 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 NEU 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 data structure. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: xina1i at er_xian_qiao
CVSS Scores
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
  • 2022-01-07 CVE Reserved
  • 2022-02-09 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-10-25 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Siemens
Search vendor "Siemens"
Simcenter Femap
Search vendor "Siemens" for product "Simcenter Femap"
2020.2
Search vendor "Siemens" for product "Simcenter Femap" and version "2020.2"
-
Affected
Siemens
Search vendor "Siemens"
Simcenter Femap
Search vendor "Siemens" for product "Simcenter Femap"
2020.2
Search vendor "Siemens" for product "Simcenter Femap" and version "2020.2"
maintenance_pack1
Affected
Siemens
Search vendor "Siemens"
Simcenter Femap
Search vendor "Siemens" for product "Simcenter Femap"
2020.2
Search vendor "Siemens" for product "Simcenter Femap" and version "2020.2"
maintenance_pack2
Affected
Siemens
Search vendor "Siemens"
Simcenter Femap
Search vendor "Siemens" for product "Simcenter Femap"
2020.2
Search vendor "Siemens" for product "Simcenter Femap" and version "2020.2"
maintenance_pack3
Affected
Siemens
Search vendor "Siemens"
Simcenter Femap
Search vendor "Siemens" for product "Simcenter Femap"
2021.1
Search vendor "Siemens" for product "Simcenter Femap" and version "2021.1"
-
Affected
Siemens
Search vendor "Siemens"
Simcenter Femap
Search vendor "Siemens" for product "Simcenter Femap"
2021.1
Search vendor "Siemens" for product "Simcenter Femap" and version "2021.1"
maintenance_pack1
Affected
Siemens
Search vendor "Siemens"
Simcenter Femap
Search vendor "Siemens" for product "Simcenter Femap"
2021.1
Search vendor "Siemens" for product "Simcenter Femap" and version "2021.1"
maintenance_pack2
Affected
Siemens
Search vendor "Siemens"
Simcenter Femap
Search vendor "Siemens" for product "Simcenter Femap"
2021.1
Search vendor "Siemens" for product "Simcenter Femap" and version "2021.1"
maintenance_pack3
Affected