Exploitation Summary
CVE-2021-3017 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.
Description
The web interface on Intelbras WIN 300 and WRN 342 devices through 2021-01-04 allows remote attackers to discover credentials by reading the def_wirelesspassword line in the HTML source code.
Nuclei Templates (1)
Intelbras WIN 300/WRN 342 - Credentials Disclosure
HIGHby pikpikcu
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.intelbras.com/pt-br/ajuda-download/faq/roteador-wireless-veloz-wrn-342
Third Party Advisory x_refsource_misc
https://pastebin.com/cTYTf0Yn
Scores
CVSS v3
7.5
EPSS
0.6302
EPSS Percentile
99.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
Status
published
Products (2)
intelbras/win_300_firmware
< 2021-01-04
intelbras/wrn_342_firmware
< 2021-01-04
Published
Apr 14, 2021
Tracked Since
Feb 18, 2026