Vulnerability identifier: #VU20359
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:
CWE-ID:
CWE-400
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
SINAMICS SM150
Hardware solutions /
Firmware
SINAMICS SM120
Hardware solutions /
Firmware
SINAMICS SL150
Hardware solutions /
Firmware
SINAMICS GM150
Hardware solutions /
Firmware
SINAMICS GL150
Hardware solutions /
Firmware
SINAMICS GH150
Hardware solutions /
Firmware
Vendor: Siemens
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation in the webserver. A remote attacker can trigger resource exhaustion, perform a denial of service (DoS) attack and restart the webserver of the affected device.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
SINAMICS SM150: 4.8
SINAMICS SM120: 4.7 - 4.8
SINAMICS SL150: 4.7 - 4.8
SINAMICS GM150: 4.7 - 4.8
SINAMICS GL150: 4.7 - 4.8
SINAMICS GH150: 4.7 - 4.8
External links
http://cert-portal.siemens.com/productcert/pdf/ssa-530931.pdf
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.