high
7.4
CWE
79
Advisory Published
Updated

CVE-2021-21004: Cross-site Scripting Vulnerability in Phoenix Contact FL SWITCH SMCS series products

First published: Wed Jun 23 2021(Updated: )

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 executed by the client.

Credit: info@cert.vde.com

Affected SoftwareAffected VersionHow to fix
Phoenixcontact Fl Switch Smcs 16tx Firmware<=4.70
Phoenixcontact Fl Switch Smcs 16tx
Phoenixcontact Fl Switch Smcs 14tx\/2fx Firmware<=4.70
Phoenixcontact Fl Switch Smcs 14tx\/2fx
Phoenixcontact Fl Switch Smcs 14tx\/2fx-sm Firmware<=4.70
Phoenixcontact Fl Switch Smcs 14tx\/2fx-sm
Phoenixcontact Fl Switch Smcs 8gt Firmware<=4.70
Phoenixcontact Fl Switch Smcs 8gt
Phoenixcontact Fl Switch Smcs 6gt\/2sfp Firmware<=4.70
Phoenixcontact Fl Switch Smcs 6gt\/2sfp
Phoenixcontact Fl Switch Smcs 8tx-pn Firmware<=4.70
Phoenixcontact Fl Switch Smcs 8tx-pn
Phoenixcontact Fl Switch Smcs 4tx-pn Firmware<=4.70
Phoenixcontact Fl Switch Smcs 4tx-pn
Phoenixcontact Fl Switch Smcs 8tx Firmware<=4.70
Phoenixcontact Fl Switch Smcs 8tx
Phoenixcontact Fl Switch Smcs 6tx\/2sfp Firmware<=4.70
Phoenixcontact Fl Switch Smcs 6tx\/2sfp
Phoenixcontact Fl Switch Smn 6tx\/2pof-pn Firmware<=4.70
Phoenixcontact Fl Switch Smn 6tx\/2pof-pn
Phoenixcontact Fl Switch Smn 8tx-pn Firmware<=4.70
Phoenixcontact Fl Switch Smn 8tx-pn
Phoenixcontact Fl Switch Smn 6tx\/2fx Firmware<=4.70
Phoenixcontact Fl Switch Smn 6tx\/2fx
Phoenixcontact Fl Switch Smn 6tx\/2fx Sm Firmware<=4.70
Phoenixcontact Fl Switch Smn 6tx\/2fx Sm
Phoenixcontact Fl Nat Smn 8tx Firmware<=4.63
Phoenixcontact Fl Nat Smn 8tx
Phoenixcontact Fl Nat Smn 8tx-m Firmware<=4.63
Phoenixcontact Fl Nat Smn 8tx-m

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID for this Phoenix Contact FL SWITCH SMCS series products vulnerability?

    The vulnerability ID is CVE-2021-21004.

  • What is the title of this vulnerability?

    The title of this vulnerability is '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 executed by the client.'

  • What is the severity of CVE-2021-21004?

    The severity of CVE-2021-21004 is high.

  • Which Phoenix Contact FL SWITCH SMCS series products are affected by this vulnerability?

    Multiple versions of Phoenix Contact FL SWITCH SMCS series products are affected.

  • How can an attacker exploit this vulnerability?

    An attacker can exploit this vulnerability by inserting malicious code via LLDP frames into the web-based management, which can then be executed by the client.

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