Vulnerability identifier: #VU48917
Vulnerability risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-248
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
SIMATIC ET 200SP Open Controller
Server applications /
SCADA systems
SIMATIC S7-1500 Software Controller
Server applications /
SCADA systems
Vendor: Siemens
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to uncaught exception. A remote attacker can send a specially crafted HTTP request to the products web server and cause a denial of service condition.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
SIMATIC ET 200SP Open Controller: 20.8
SIMATIC S7-1500 Software Controller: 20.8
External links
http://ics-cert.us-cert.gov/advisories/icsa-20-343-09
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.