User credentials are stored using AES‑ECB encryption with a hardcoded key. An unauthenticated remote attacker obtaining the configuration file can decrypt and recover plaintext usernames and passwords, especially when combined with the authentication bypass.

User credentials are stored using AES‑ECB encryption with a hardcoded key. An unauthenticated remote attacker obtaining the configuration file can decrypt and recover plaintext usernames and passwords, especially when combined with the authentication bypass.

Several vulnerabilities have been identified in the WAGO 852‑1328 device's web‑based management interface, which is implemented using a modified lighttpd server and custom CGI binaries. These issues include multiple stack buffer overflows, an authentication bypass, and insecure credential storage.