CVE-2021-46151: Siemens Simcenter Femap NEU File Parsing Out-Of-Bounds Write 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 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-14754, ZDI-CAN-15082)

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 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.

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.

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·05:09 AM

Frequently Asked Questions

1

What is the severity of CVE-2021-46151?

The severity of CVE-2021-46151 is high, with a CVSS score of 7.8.

2

How does CVE-2021-46151 affect Siemens Simcenter Femap?

CVE-2021-46151 affects Siemens Simcenter Femap versions 2020.2, 2020.2-maintenance_pack1, 2020.2-maintenance_pack2, 2020.2-maintenance_pack3, 2021.1, 2021.1-maintenance_pack1, 2021.1-maintenance_pack2, and 2021.1-maintenance_pack3.

3

Is user interaction required to exploit CVE-2021-46151?

Yes, user interaction is required to exploit CVE-2021-46151. The target must visit a malicious page or open a malicious file.

4

How can I fix CVE-2021-46151?

To fix CVE-2021-46151, it is recommended to apply the necessary security updates provided by Siemens for Simcenter Femap.

5

Where can I find more information about CVE-2021-46151?

More information about CVE-2021-46151 can be found in the following references: [Siemens ProductCERT Advisory](https://cert-portal.siemens.com/productcert/pdf/ssa-609880.pdf), [ZDI-22-291](https://www.zerodayinitiative.com/advisories/ZDI-22-291/), [ZDI-22-292](https://www.zerodayinitiative.com/advisories/ZDI-22-292/).

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