Denial of service in Siemens SINUMERIK Controllers



Published: 2021-10-13
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-37199
CWE-ID CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
SINUMERIK 808D
Hardware solutions / Firmware

SINUMERIK 828D
Server applications / SCADA systems

Vendor Siemens

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU57344

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-37199

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and cause a denial of service condition on the target system.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

SINUMERIK 808D: All versions

SINUMERIK 828D: before 4.95

CPE2.3 External links

http://cert-portal.siemens.com/productcert/pdf/ssa-178380.pdf

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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



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