critical
9.3
CWE
119
Advisory Published
Updated

CVE-2018-10731: Buffer Overflow

First published: Thu May 17 2018(Updated: )

All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Phoenix Contact FL Switch 3005 Firmware>1.0<=1.33
Phoenix Contact FL Switch 3005
Phoenixcontact Fl Switch 3005t Firmware>=1.0<=1.33
Phoenix Contact FL Switch 3005T
Phoenixcontact Fl Switch 3004t-fx St Firmware>=1.0<=1.33
Phoenix Contact FL Switch 3004T-FX
Phoenixcontact FL Switch 3004T-FX ST Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 3004t-fx St Firmware
Phoenixcontact Fl Switch 3008 Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 3008
PhoenixContact FL Switch Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 3008t Firmware
Phoenix Contact FL Switch 3006T-2FX SM Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 3006t-2fx Sm Firmware
Phoenix Contact FL Switch 3006T-2FX ST Firmware>=1.0<=1.33
Phoenix Contact FL Switch 3006T-2FX ST Firmware
Phoenixcontact FL Switch 3012e-2sfx>=1.0<=1.33
Phoenixcontact FL Switch 3012e-2sfx Firmware
Phoenixcontact FL Switch 3016e Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 3016e Firmware
Phoenixcontact FL Switch 3016t Firmware>=1.0<=1.33
Phoenix Contact FL Switch 3016
Phoenixcontact FL Switch 3016t Firmware>=1.0<=1.33
Phoenixcontact FL Switch 3016t Firmware
Phoenix Contact FL Switch 3006T-2FX SM Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 3006t-2fx Sm Firmware
Phoenixcontact Fl Switch 4008t-2sfp Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 4008t-2sfp Firmware
Phoenix Contact FL Switch 4008T-2GT-4FX SM Firmware>=1.0<=1.33
Phoenix Contact FL Switch 4008T-2GT-4FX SM Firmware
Phoenix Contact FL Switch 4008T-2GT-3FX SM>=1.0<=1.33
Phoenix Contact FL Switch 4008T-2GT-3FX SM
Phoenixcontact FL Switch 4808E-16FX LC-4GC>=1.0<=1.33
Phoenix Contact FL Switch 4808E-16FX LC-4GC Firmware
Phoenixcontact FL Switch 4808E-16FX LC-4GC>=1.0<=1.33
Phoenixcontact Fl Switch 4808e-16fx Sm-4gc Firmware
Phoenixcontact FL Switch 4808E-16FX SM ST-4GC>=1.0<=1.33
Phoenixcontact Fl Switch 4808e-16fx Sm-4gc Firmware
Phoenixcontact FL Switch 4808E-16FX LC-4GC Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 4808e-16fx St-4gc Firmware
Phoenixcontact Fl Switch 4808e-16fx Sm Lc-4gc Firmware>=1.0<=1.33
Phoenix Contact FL Switch 4808E-16FX-4GC
Phoenixcontact FL Switch 4808E-16FX LC-4GC Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 4808e-16fx Sm Lc-4gc Firmware
Phoenixcontact FL Switch 4012T 2GT 2FX>=1.0<=1.33
Phoenix Contact FL Switch 4012T-2GT-2FX ST Firmware
Phoenixcontact FL Switch 4012T 2GT 2FX>=1.0<=1.33
Phoenixcontact FL Switch 4012T 2GT 2FX
Phoenixcontact Fl Switch 4824e-4gc Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 4824e-4gc
Phoenixcontact Fl Switch 4800e-24fx Sm-4gc Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 4800e-24fx Sm-4gc Firmware
Phoenixcontact Fl Switch 4800e-24fx Sm-4gc>=1.0<=1.33
Phoenixcontact Fl Switch 4800e-24fx Sm-4gc Firmware
Phoenixcontact Fl Switch 3012e-2fx Sm Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 3012e-2fx Sm Firmware
Phoenixcontact Fl Switch 4000t-8poe-2sfp-r Firmware>=1.0<=1.33
Phoenixcontact Fl Switch 4000t-8poe-2sfp-r Firmware

Remedy

https://cert.vde.com/de-de/advisories/vde-2018-007

Remedy

https://ics-cert.us-cert.gov/advisories/ICSA-18-137-02

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-10731?

    CVE-2018-10731 has a medium severity rating due to its potential to cause buffer overflow attacks.

  • How do I fix CVE-2018-10731?

    To fix CVE-2018-10731, update the firmware of affected Phoenix Contact FL SWITCH products to version 1.34 or later.

  • Which products are affected by CVE-2018-10731?

    CVE-2018-10731 affects multiple Phoenix Contact managed FL SWITCH 3xxx, 4xxx, and 48xx products running firmware version 1.0 to 1.33.

  • What kind of attack can CVE-2018-10731 facilitate?

    CVE-2018-10731 can facilitate remote code execution through buffer overflow attacks when handling oversized cookies.

  • Is CVE-2018-10731 a new vulnerability?

    CVE-2018-10731 is not new; it was identified in 2018 and relates specifically to certain firmware versions.

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