Multiple vulnerabilities in Siemens Simcenter Femap



| Updated: 2022-03-21
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-46162
CVE-2021-46699
CWE-ID CWE-787
CWE-121
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Simcenter Femap
Server applications / SCADA systems

Vendor Siemens

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU60698

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-46162

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error while parsing specially crafted NEU files. A remote attacker can create a specially crafted NEU file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Simcenter Femap: before 2022.1.1

CPE2.3 External links

https://cert-portal.siemens.com/productcert/txt/ssa-949188.txt
https://www.zerodayinitiative.com/advisories/ZDI-22-511/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Stack-based buffer overflow

EUVDB-ID: #VU60699

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-46699

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error while parsing specially crafted BDF files. A remote unauthenticated attacker can trick a victim to open a specially crafted BDF file, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Simcenter Femap: before 2022.1.1

CPE2.3 External links

https://cert-portal.siemens.com/productcert/txt/ssa-949188.txt
https://www.zerodayinitiative.com/advisories/ZDI-22-509/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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