Critical severity9.8NVD Advisory· Published Jan 12, 2018· Updated Jun 17, 2026
CVE-2017-16743
CVE-2017-16743
Description
An Improper Authorization issue was discovered in PHOENIX CONTACT FL SWITCH 3xxx, 4xxx, and 48xxx Series products running firmware Version 1.0 to 1.32. A remote unauthenticated attacker may be able to craft special HTTP requests allowing an attacker to bypass web-service authentication allowing the attacker to obtain administrative privileges on the device.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
30- cpe:2.3:o:phoenixcontact:fl_switch_3004t-fx_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3004t-fx_st_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3005_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3005t_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3006t-2fx_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3006t-2fx_sm_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3006t-2fx_st_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3008_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3008t_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3012e-2fx_sm_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3012e-2sfx_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3016_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3016e_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_3016t_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4000t-8poe-2sfp-r_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4008t-2gt-3fx_sm_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4008t-2gt-4fx_sm_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4008t-2sfp_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4012t-2gt-2fx_st_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4012t_2gt_2fx_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4800e-24fx-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4800e-24fx_sm-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4808e-16fx-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4808e-16fx_lc-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4808e-16fx_sm-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4808e-16fx_sm_lc-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4808e-16fx_sm_st-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4808e-16fx_st-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- cpe:2.3:o:phoenixcontact:fl_switch_4824e-4gc_firmware:*:*:*:*:*:*:*:*Range: >=1.0,<=1.32
- Range: 1.0 to 1.32
Patches
Vulnerability mechanics
References
2- ics-cert.us-cert.gov/advisories/ICSA-18-011-03nvdPatchThird Party AdvisoryUS Government Resource
- cert.vde.com/en-us/advisories/vde-2017-006nvd
News mentions
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