SSH-Weak-DH

About This tool creates SSH connections to a server and goes through different client configurations to check if the server permits a Diffie-Hellman DH key exchange using a weak group. We aim for our tool to help assess SSH servers for weak DH key exchange settings. Please be aware that this tool...

PQC-Scanner

The PQC Network Scanner is a purpose‑built assessment tool designed to help organisations understand their cryptographic exposure as they transition toward a post‑quantum security posture. Unlike traditional TLS scanners that focus solely on certificate validity or classical cryptographic strengt...

BlackBerryC2

BlackBerryC2 2.0.0-beta BlackBerryC2 is an encrypted remote administration and C2 framework designed exclusively for educational use, security research, and controlled laboratory environments. The project demonstrates how to build a custom command-and-control server with application-layer...

CVE-2025-32433.py

CVE-2025-32433.py This Python PoC simulates SSH message flows, including key exchange, channel open, and command requests, to analyze server behavior. Intended for controlled lab testing, it demonstrates protocol handling, pre-auth message processing, and payload interactions for research and...

formal_np1sec

Research into proving the confidentiality of the group key in the group key exchange part of n+1sec, with certain limitations such as having only 3 participants. This work was done by Alex Balducci and Andy Lee. The main document is gkepnormxormsimplifiedwriteup.txt. It contains references to the...

CVE-2025-26466

CVE-2025-26466 poc for CVE-2025-26466 made by Fikret Can Gurbuz USAGE python3 poc.py -i -p These are the steps: 1. TCP connect to port 2. recieve server banner SSH-2.0-OpenSSHX.Xp1 3. send your client banner SSH-2.0-YourClient\r\n 4. send wrapsshpacketbuildkexinit 5. recieve server's KEXINIT...

NetSpy

NetSpyC2 NetSpyC2 is a Python-based Command & Control C2 server created for educational purposes, security research, and controlled laboratory environments. The project demonstrates how encrypted client-server communication, session management, and secure file transfer can be implemented at the...

DHEater

DHEater DHEater is the proof-of-concept implementation of the DHEat attack CVE-2002-20001. It saturates a server's CPU by enforcing Diffie-Hellman ephemeral DHE or elliptic-curve Diffie-Hellman ephemeral ECDHE key exchange over both TLS and SSH. For further information about the attack visit the...

cve-2025-26466-openssh-poc

CVE-2025-26466 OpenSSH SSH2MSGPING DoS PoC Disclaimer: This code is intended exclusively for educational purposes and authorized security testing. Unauthorized attacks against third-party systems are illegal. Vulnerability CVE-2025-26466 is a pre-authentication denial-of-service DoS vulnerability...

reternal-quickstart

RE:TERNAL Note: Still under development, only use for testing and do not expose interfaces! Current compose doesn't work yet, only try when you know what you're doing RE:TERNAL is a centralised purple team orchestration service to manage third-party C2 frameworks. Agents are installed on endpoint...

camel-pqc-tls

Post-Quantum TLS with Apache Camel This repository contains three examples demonstrating Post-Quantum Cryptography PQC TLS 1.3 handshakes with Apache Camel, using the X25519MLKEM768 hybrid key exchange. X25519MLKEM768 combines classical X25519 elliptic curve Diffie-Hellman with ML-KEM-768 , a...

EUVD-2026-94165

src/internal.c in wolfSSL wolfSSH through 1.5.0 admits the server-to-client Diffie-Hellman group exchange messages SSHMSGKEXDHGEXGROUP 31 and SSHMSGKEXDHGEXREPLY 33 when a server receives them from an unauthenticated client. IsMessageAllowedServer applies no direction check to the key exchange...

CVE-2026-84897

The wolfSSH server (through version 1.5.0 ) is vulnerable to CPU exhaustion and key exchange role confusion because it improperly admits server-to-client Diffie-Hellman group exchange messages from unauthenticated clients. Due to a missing direction check in IsMessageAllowedServer(), the server m...

CVE-2026-84897 wolfSSH server accepts server-to-client DH group exchange messages from an unauthenticated client, causing pre-authentication primality-test CPU exhaustion and key exchange role confusion

src/internal.c in wolfSSL wolfSSH through 1.5.0 admits the server-to-client Diffie-Hellman group exchange messages SSHMSGKEXDHGEXGROUP 31 and SSHMSGKEXDHGEXREPLY 33 when a server receives them from an unauthenticated client. IsMessageAllowedServer applies no direction check to the key exchange...

CVE-2026-84897 wolfSSH server accepts server-to-client DH group exchange messages from an unauthenticated client, causing pre-authentication primality-test CPU exhaustion and key exchange role confusion

src/internal.c in wolfSSL wolfSSH through 1.5.0 admits the server-to-client Diffie-Hellman group exchange messages SSHMSGKEXDHGEXGROUP 31 and SSHMSGKEXDHGEXREPLY 33 when a server receives them from an unauthenticated client. IsMessageAllowedServer applies no direction check to the key exchange...

CVE-2026-84897 wolfSSH server accepts server-to-client DH group exchange messages from an unauthenticated client, causing pre-authentication primality-test CPU exhaustion and key exchange role confusion

src/internal.c in wolfSSL wolfSSH through 1.5.0 admits the server-to-client Diffie-Hellman group exchange messages SSHMSGKEXDHGEXGROUP 31 and SSHMSGKEXDHGEXREPLY 33 when a server receives them from an unauthenticated client. IsMessageAllowedServer applies no direction check to the key exchange...

CVE-2026-16516 wolfSSH ECDSA host key curve not validated against negotiated algorithm

wolfSSH does not validate that the ECDSA curve identifier in a KEXDHREPLY host key blob matches the algorithm negotiated during key exchange. In ParseECCPubKey src/internal.c, the blob's algorithm string is used to derive the curve via NameToId/wcPrimeForId without checking against the negotiated...

EUVD-2026-94161

wolfSSH does not validate that the ECDSA curve identifier in a KEXDHREPLY host key blob matches the algorithm negotiated during key exchange. In ParseECCPubKey src/internal.c, the blob's algorithm string is used to derive the curve via NameToId/wcPrimeForId without checking against the negotiated...

CVE-2026-16516 wolfSSH ECDSA host key curve not validated against negotiated algorithm

wolfSSH does not validate that the ECDSA curve identifier in a KEXDHREPLY host key blob matches the algorithm negotiated during key exchange. In ParseECCPubKey src/internal.c, the blob's algorithm string is used to derive the curve via NameToId/wcPrimeForId without checking against the negotiated...

CVE-2026-16516 wolfSSH ECDSA host key curve not validated against negotiated algorithm

wolfSSH does not validate that the ECDSA curve identifier in a KEXDHREPLY host key blob matches the algorithm negotiated during key exchange. In ParseECCPubKey src/internal.c, the blob's algorithm string is used to derive the curve via NameToId/wcPrimeForId without checking against the negotiated...