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Advisories

eWON Firmware 12.2-13.0 Authentication Bypass via wsdReadForm

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severity
high
date
Affecting

  • eWON <= 12.2 <= 13.0

CWE
  • CWE-798 Use of Hard-coded Credentials
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Photubias
Description
eWON Firmware versions 12.2 to 13.0 contain an authentication bypass vulnerability that allows attackers with minimal privileges to retrieve sensitive user data by exploiting the wsdReadForm endpoint. Attackers can send POST requests to /wrcgi.bin/wsdReadForm with base64-encoded partial credentials and a crafted wsdList parameter to extract encrypted passwords for all users, which can be decrypted using a hardcoded XOR key.

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