#VU56622 Input validation error in Hardware solutions


Published: 2021-09-15

Vulnerability identifier: #VU56622

Vulnerability 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-2021-37206

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIPROTEC 5 relays with CPU variants CP050
Hardware solutions / Firmware
SIPROTEC 5 relays with CPU variants CP100
Hardware solutions / Firmware
SIPROTEC 5 relays with CPU variants CP200
Hardware solutions / Firmware
SIPROTEC 5 relays with CPU variants CP300
Hardware solutions / Firmware

Vendor:

Description

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted packet to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions


External links
http://cert-portal.siemens.com/productcert/pdf/ssa-500748.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.


Latest bulletins with this vulnerability