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...

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...

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...

PQC-Scanner

Le PQC Network Scanner est un outil d'évaluation spécialisé conçu pour aider les organisations à comprendre leur exposition cryptographique lors de la transition vers une posture de sécurité post‑quantique. Contrairement aux scanners TLS traditionnels qui se concentrent uniquement sur la validité...

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

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...

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...

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...

PT-2026-107386

Name of the Vulnerable Software and Affected Versions wolfSSH affected versions not specified Description wolfSSH fails to validate that the ECDSA curve identifier in a KEXDH REPLY host key blob matches the algorithm negotiated during key exchange. In the ParseECCPubKey function, the blob's...

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...

ECC_Attacks

Known Attacks On Elliptic Curve Cryptography Introduction Introduction To Elliptic Curves Elliptic Curves In The Context Of Cryptography ECC Attacks ECDH Attacks The Order Of The Generator Is Too Small The Order Of The Generator Is A Smooth Number The Order Of The Generator Is Almost A Smooth...

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...

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...

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...

russh: russh: Cryptographic fallback bypass via missing public key validation

A flaw was found in russh. The library fails to validate peer public keys during hybrid cryptographic key exchange, accepting an all-zero key. A remote attacker acting as a malicious Secure Shell SSH peer can exploit this flaw during connection negotiation to force the classical encryption...

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...

Rocky Linux 8 [CIQ] Security Update: gnutls / gnutls-c++ / gnutls-c++-debuginfo / gnutls-dane / etc (crlsa-2023_1569)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20231569 advisory. gnutls: timing side-channel in the TLS RSA key exchange code CVE-2023-0361 Tenable has extracted the preceding description block directly from the CIQ security...