VDE-2021-023

csafDEphoenix_contact_psirt

PHOENIX CONTACT: Security Advisory for FL SWITCH SMCS series

view advisory published 2021-06-23

Multiple vulnerabilities have been discovered in the current firmware of the PHOENIX CONTACT FL SWITCH SMCS series switches.

01

describes (3)

Related CVEs.

IDseverity exploitable
CVE-2021-21005UShigh7.5—
In Phoenix Contact FL SWITCH SMCS series products in multiple versions if an attacker sends a hand-crafted TCP-Packet with the Urgent-Flag set and the Urgent-Pointer set to 0, the…
CVE-2021-21004USmedium6.1—
In Phoenix Contact FL SWITCH SMCS series products in multiple versions an attacker may insert malicious code via LLDP frames into the web-based management which could then be execu…
CVE-2021-21003USmedium5.3—
In Phoenix Contact FL SWITCH SMCS series products in multiple versions fragmented TCP-Packets may cause a Denial of Service of Web-, SNMP- and ICMP-Echo services. The switching fun…
02

references

External citations — patches, advisories, analysis.

03

remediations (3)

  • Mitigation

    Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. 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

  • Mitigation

    Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. 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

  • Mitigation

    Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. 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

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