Rewterz Threat Advisory –ICS: Multiple Siemens Simcenter Femap Vulnerabilities

Severity

High

Analysis Summary

CVE-2021-27399

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 modfem files. The issue results from the lack of proper validation of user-supplied data, which can result in a write before the start of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process.

CVE-2021-27387

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 modfem 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.

Impact

• Code Execution

Affected Vendors

Siemens

Affected Products

• Simcenter Femap

Remediation

Refer to vendor advisory for the complete list of affected products and their respective patches at

https://cert-portal.siemens.com/productcert/pdf/ssa-133038.pdf