Penta Security WAPPLES 4.0.54.1 / 5.0 / 6.0 Path Traversal via /webapi/file/transfer

Penta Security WAPPLES 4.0.54.1, 5.0, and 6.0 contains a path traversal vulnerability that allows authenticated attackers to download arbitrary files via the name parameter of /webapi/file/transfer. Attackers can send GET requests with type=db_backup and ../ sequences in name to read files like /etc/passwd, and a hardcoded systemi account makes authentication effectively trivial. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-19.

Penta Security Systems Inc WAPPLES 4.0.*, 5.0.0.*, 5.0.12.* are vulnerable to Incorrect Access Control. The operating system that WAPPLES runs on has a built-in non-privileged user penta with a predefined password. The password for this user, as well as its existence, is not disclosed in the documentation. Knowing the credentials, attackers can use this feature to gain uncontrolled access to the device and therefore are considered an undocumented possibility for remote control.

WAPPLES through 6.0 has a hardcoded systemi account. A threat actor could use this account to access the system configuration and confidential information (such as SSL keys) via an HTTPS request to the /webapi/ URI on port 443 or 5001.

An arbitrary file download vulnerability in the downloadAction() function of Penta Security Systems Inc WAPPLES v6.0 r3 4.10-hotfix1 allows attackers to download arbitrary files via a crafted POST request.

Penta Security Systems Inc WAPPLES v6.0 r3 4.10-hotfix1 allows attackers to escalate privileges via overwriting files using SUID flagged executables.