Description
Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 uses the ecos_pw cookie for authentication, which contains Base64-encoded credential data combined with a static suffix. Because the encoding is reversible and lacks integrity protection, an attacker can reconstruct or forge a valid cookie value without proper authentication. This allows unauthorized administrative access to protected endpoints.
Problem types
CWE-312 Cleartext Storage of Sensitive Information
Product status
<= 12.01.01.37
Credits
Angel Barre (call4pwn)
References
www.nexxtsolutions.com/...vity/internal-products/ARN02304U6/ (Official product page)
nexxt-connectivity-frontend.s3.amazonaws.com/...01.01.37.zip (Firmware download)