Vulnerability identifier: #VU15890
Vulnerability risk: Low
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-400
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
SIMATIC S7-1200
Hardware solutions /
Firmware
SIMATIC S7-1500 CPU
Hardware solutions /
Firmware
Vendor: Siemens
Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to resource exhaustion. A remote attacker can send packets to Port 102/TCP, exhaust the available connection pool by opening a sufficient number of connections to the device and cause the service to crash.
Mitigation
The vulnerability has been fixed in the version 2.6.
Vulnerable software versions
SIMATIC S7-1200: All versions
SIMATIC S7-1500 CPU: All versions
External links
http://ics-cert.us-cert.gov/advisories/ICSA-18-317-05
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.