Advisory Details

February 11th, 2022

Siemens Simcenter Femap NEU File Parsing Uninitialized Pointer Remote Code Execution Vulnerability

ZDI-22-295
ZDI-CAN-14755

CVE ID CVE-2021-46152
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 NEU files. The issue results from the lack of proper initialization of a pointer prior to accessing it. An attacker can leverage this vulnerability to execute code in the context of the current process.

ADDITIONAL DETAILS Siemens has issued an update to correct this vulnerability. More details can be found at:
https://cert-portal.siemens.com/productcert/pdf/ssa-609880.pdf
DISCLOSURE TIMELINE
  • 2021-09-29 - Vulnerability reported to vendor
  • 2022-02-11 - Coordinated public release of advisory
CREDIT xina1i
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