(0Day) Siemens Simcenter Femap NEU File Parsing Out-Of-Bounds Write Information Disclosure Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to disclose sensitive information 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 object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.
Additional Details
This vulnerability is being disclosed publicly without a patch in accordance with the ZDI 120 day deadline.
09/29/21 – ZDI reported the vulnerabilities to ICS-CERT
09/29/21 – ICS-CERT acknowledged the reports
02/11/22 – ZDI requested an update
02/17/22 – ICS-CERT communicated that the cases have not been fixed
03/10/22 – ZDI requested an update
03/10/22 – ICS-CERT communicated that the cases have not been fixed
03/11/22 – ZDI notified ICS-CERT of the intention to publish the cases as 0-day advisories on 03/27/22
-- Mitigation:
Given the nature of the vulnerability the only salient mitigation strategy is to restrict interaction with the application.
Disclosure Timeline
- 2021-09-29 - Vulnerability reported to vendor
- 2022-03-29 - Coordinated public release of advisory
Credit
xina1i
