CVE-2021-46154: Siemens Simcenter Femap NEU File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability

Published Feb 9, 2022
·
Updated

A vulnerability has been identified in Simcenter Femap V2020.2 (All versions), Simcenter Femap V2021.1 (All versions). Affected application contains a stack based buffer overflow vulnerability while parsing NEU files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-14646, ZDI-CAN-14679, ZDI-CAN-15084, ZDI-CAN-15304)

Other sources

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 initialization of memory prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process.

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 the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

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 memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process.

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 read past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process.

Affected Software

9 affected components
Siemens Simcenter Femap=2020.2
Siemens Simcenter Femap=2020.2-maintenance_pack1
Siemens Simcenter Femap=2020.2-maintenance_pack2
Siemens Simcenter Femap=2020.2-maintenance_pack3
Siemens Simcenter Femap=2021.1
Siemens Simcenter Femap=2021.1-maintenance_pack1
Siemens Simcenter Femap=2021.1-maintenance_pack2
Siemens Simcenter Femap=2021.1-maintenance_pack3
Siemens Simcenter Femap

Event History

Feb 9, 2022
CVE Published
via MITRE·03:17 PM
Data Sourced
via MITRE·03:17 PM
DescriptionWeakness
Aug 4, 2024
Advisory Published
via ZDI·05:10 AM

Frequently Asked Questions

1

What is the vulnerability ID?

The vulnerability ID is CVE-2021-46154.

2

What is the affected software?

The affected software is Siemens Simcenter Femap version 2020.2 to 2021.1.

3

Is user interaction required to exploit this vulnerability?

Yes, user interaction is required to exploit this vulnerability.

4

How can the vulnerability be exploited?

The vulnerability can be exploited by visiting a malicious page or opening a malicious file.

5

What is the severity of CVE-2021-46154?

The severity of CVE-2021-46154 is high with a CVSS score of 7.8.

6

Are there any references for this vulnerability?

Yes, the references for this vulnerability are [Link1](https://cert-portal.siemens.com/productcert/pdf/ssa-609880.pdf), [Link2](https://www.zerodayinitiative.com/advisories/ZDI-22-301/), and [Link3](https://www.zerodayinitiative.com/advisories/ZDI-22-302/).

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