CVE-2017-16743: phoenixcontact fl_switch_3004t-fx_firmware Improper Authorization
Vulnerability summary
CVE-2017-16743 is a high (CVSS 10.0) Improper Authorization vulnerability in phoenixcontact fl_switch_3004t-fx_firmware. EPSS estimates a 3.11% chance of exploitation in the next 30 days, higher than 87.6% of scored vulnerabilities.
Timeline
- 12-01-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
3.11%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.11% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-285Improper AuthorizationThe product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
- CWE-863Incorrect AuthorizationThe product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Affected systems
Phoenixcontact29 products
- fl_switch_3004t-fx_firmware≥ 1.0, ≤ 1.32
- fl_switch_3004t-fx_st_firmware≥ 1.0, ≤ 1.32
- fl_switch_3005_firmware≥ 1.0, ≤ 1.32
- fl_switch_3005t_firmware≥ 1.0, ≤ 1.32
- fl_switch_3006t-2fx_firmware≥ 1.0, ≤ 1.32
1 vendor · 29 products
References
2 links- cert.vde.com/en-us/advisories/vde-2017-006X Refsource CONFIRM
- ics-cert.us-cert.gov/advisories/ICSA-18-011-03X Refsource MISCPatchThird Party AdvisoryUS Government Resource