Summary
Third party Niche Ethernet stack has several vulnerabilities announced by the security researcher's community.
Phoenix Contact Classic Line industrial controllers are developed and designed for the use in closed industrial networks. The communication protocols and device access do not feature authentication measures. Remote attackers can use specially crafted IP packets to cause a Denial of Service or a Breach of Integrity of the PLC.
Details
Impact
A successful attack to the Niche Ethernet stack can lead to Denial of Service or a Breach of Integrity of the PLC.
Mitigation
Customers using Phoenix Contact Classic Line Controllers are strongly recommended to operate the devices in closed networks or protected with a suitable firewall as intended. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note:
Measures to protect network-capable devices with Ethernet connection
Remediation
Phoenix Contact Classic Line Controllers are designed and developed for the use in closed industrial networks. The control and configuration protocols do not feature authentication mechanisms by design. Phoenix Contact therefore strongly recommends using the devices exclusively in closed networks and protected by a suitable firewall.
Phoenix Contact is offering the mGuard product family for network segmentation and protection.
Vulnerabilities 6
-
Unscored —
An issue was discovered in HCC Nichestack 3.0. The code that parses ICMP packets relies on an unchecked value of the IP…
-
Unscored —
An issue was discovered in HCC Nichestack 3.0. The code that parses TCP packets relies on an unchecked value of the IP …
-
Unscored —
An issue was discovered in HCC Nichestack 3.0. The code that generates Initial Sequence Numbers (ISNs) for TCP connecti…
-
Unscored —
An issue was discovered in HCC embedded InterNiche 4.0.1. A potential heap buffer overflow exists in the code that pars…
-
Unscored —
An issue was discovered in tcp_pulloutofband() in tcp_in.c in HCC embedded InterNiche 4.0.1. The TCP out-of-band urgent…
-
Unscored —
An issue was discovered in tcp_rcv() in nptcp.c in HCC embedded InterNiche 4.0.1. The TCP header processing code doesn'…
Revision history
-
#2
Fix: quotation mark
-
#1
initial revision
References
-
VDE-2021-032: PHOENIX CONTACT: Niche Ethernet Stack for ILC1x0, ILC1x1 and AXC 1050 Industrial controllers and CHARX control DC - HTML
https://certvde.com/en/advisories/VDE-2021-032
-
CERT@VDE Security Advisories for PHOENIX CONTACT
https://certvde.com/de/advisories/vendor/phoenixcontact/