Vulnerability identifier: #VU23592
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-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
EN100 Ethernet module IEC 61850 variant
Hardware solutions /
Security hardware applicances
EN100 Ethernet module PROFINET IO variant
Hardware solutions /
Security hardware applicances
EN100 Ethernet module Modbus TCP variant
Hardware solutions /
Security hardware applicances
EN100 Ethernet module DNP3 TCP variant
Hardware solutions /
Security hardware applicances
EN100 Ethernet module IEC 104 variant
Hardware solutions /
Security hardware applicances
Vendor: Siemens
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the webserver. A remote attacker can send a specially crafted packet, trigger memory corruption and cause a denial of service condition on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
EN100 Ethernet module IEC 61850 variant: All versions
EN100 Ethernet module PROFINET IO variant: All versions
EN100 Ethernet module Modbus TCP variant: All versions
EN100 Ethernet module DNP3 TCP variant: All versions
EN100 Ethernet module IEC 104 variant: All versions
External links
http://cert-portal.siemens.com/productcert/pdf/ssa-418979.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.