Siemens Simcenter Femap X_T File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

November 17th, 2022
ZDI-22-1593 ZDI-CAN-17854

CVE ID

CVE-2022-43397

CVSS Score

7.8 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors

Siemens

Affected Products

Simcenter Femap

Vulnerability Details

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 X_T 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.

Additional Details

https://www.cisa.gov/uscert/ics/advisories/icsa-22-314-01
https://cert-portal.siemens.com/productcert/html/ssa-853037.html


Disclosure Timeline

  • 2022-07-28 - Vulnerability reported to vendor
  • 2022-11-17 - Coordinated public release of advisory

Credit

Anonymous

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