cryptovenom

CryptoVenom CryptoVenom: The Cryptography Swiss Army knife What is CryptoVenom? CryptoVenom is an OpenSource tool which contains a lot of cryptosystems and cryptoanalysis methods all in one, including classical algorithms, hash algorithms, encoding algorithms, logic gates, mathematical functions,...

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...

cypher

🌹 CYPHER TOOLS 🌹 Écrit par TMRSWRR Version 1.0.0 Un outil tout-en-un pour la CRYPTOLOGIE. Instagram : Capture the Root 🖼️ Captures d'écran 🖼️ 📹 Comment utiliser 📹 Cliquez sur l'image... 🧰 Fonctionnalités 🧰 Cet outil comprend : 📍 HASH 📍 RSA 📍 XOR 📍 AES ECC 📍 AES CBC 📍 DES ECB 📍 FERNET 📍 RC2 📍 RC4 📍...

CVE-2026-63569 MTI/A0 DHAgreement does not validate the peer's ephemeral value

Improper input validation in DHAgreement.CalculateAgreement MTI/A0 two-pass Diffie-Hellman in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an on-path attacker to make the local party compute an agreed value the attacker already knows, defeating the key authentication MTI/A0 is...

CVE-2019-3980

CVE-2019-3980 CVE-2019-3980 exploit written in win32/c++ openssl dependency. Port of https://github.com/tenable/poc/blob/master/Solarwinds/Dameware/dwrcsdwDrvInstrce.py Instructions This PoC requires staticly linked openssl libraries. Place openssl includes in thirdparty\include\openssl and libs ...

CVE-2017-3730

CVE-2017-3730 OpenSSL CVE-2017-3730 概念実証 OpenSSH をプロキシとして使用し、DH 値をその場でパッチする DHE-PSK-WITH-AES-256-GCM-SHA384 のような暗号スイートを使用して SSL サーバーを作成します。ここでは 10.0.2.2 のポート 8899 で実行するとします。 openssh-7.4p1 を取得します パッチを適用します ビルドします 次のように実行します: root@kitploit: ./ssh -vvv -N -D 1085 -o TCPKeepAlive=yes -o...

Astra Linux – Vulnerability in mbedtls

A issue was discovered in Mbed TLS before version 2.25.0 and before versions 2.16.9 LTS and 2.7.18 LTS. The calculations performed by mbedtlsmpiexpmod are not limited; therefore, providing overly large parameters could lead to a denial of service when generating Diffie-Hellman key pairs...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi – avoid null pointer dereference in mpicmpui During NVMeTCP authentication, a controller can trigger a kernel oops by specifying the 8192-bit Diffie Hellman group and passing a correctly sized, but zeroed Diffie...

Astra Linux – Vulnerability in libssh2

In libssh2 before version 1.9.0, the kexmethoddiffiehellmangroupexchangesha256keyexchange function in kex.c contains an integer overflow that could lead to an out-of-bounds read when packets are read from the server. A remote attacker who compromises an SSH server may be able to disclose sensitiv...

Astra Linux – Vulnerability in OpenSSL

Issue Summary: Checking excessively long DH keys or parameters can be very slow. Impact Summary: Applications that use functions like DHcheck, DHcheckex, or EVPPKEYparamcheck to check DH keys or parameters may experience prolonged delays. If the keys or parameters are obtained from an untrusted...

Astra Linux – Vulnerability in Node.js

The generateKeys API function returned by crypto.createDiffieHellman only generates missing or outdated keys. In other words, it only generates a private key if none has been set yet. However, this function is also needed to compute the corresponding public key after calling setPrivateKey...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: crypto: qat – added parameter checks for DH. Requests with a source buffer that is larger than the size of the key are being rejected. This is to prevent a possible integer underflow that might occur when copying the source...

Astra Linux – Vulnerability in openssl1.0

The Raccoon attack exploits a flaw in the TLS specification, which allows an attacker to calculate the pre-master secret in connections that use a Diffie-Hellman DH-based ciphersuite. In such cases, the attacker can eavesdrop on all encrypted communications sent over that TLS connection. The atta...

EUVD-2023-60620

PocketMine-MP versions before 5.3.1 and 4.23.1 fail to validate that the identityPublicKey in LoginPacket uses the required secp384r1 elliptic curve. Attackers can provide LoginPackets with keys using different curves or non-EC key types to pass login verification but trigger an uncaught exceptio...

OESA-2026-3419 edk2 security update

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fixes: Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers from the client...

CVE-2026-59650

A flaw was found in Bouncy Castle for Java. The software fails to validate Diffie-Hellman peer values during key agreement. A remote attacker can exploit this flaw to compromise cryptographic keys, potentially leading to the decryption of sensitive communications or successful impersonation...

OSEC-2026-15 EC public key out of bounds read

The internal Point.ofoctets function is missing a length check for compressed points, and thus is raising an exception when a short buffer is provided. This affects all NIST curves P-256, P-384, P-521 and both Dsa.pubofoctets and Dh.keyexchange functions. Fix The fix is to check the length of the...

RLSA-2026:50144 Moderate: libgcrypt security update

The libgcrypt library provides general-purpose implementations of various cryptographic algorithms. Security Fixes: Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext CVE-2026-41989 For more details about the security issues, including the impact, a CVSS score...

libgcrypt security update

An update is available for libgcrypt. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The libgcrypt library provides general-purpose implementations of various...

Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext

A flaw was found in Libgcrypt. A remote attacker could exploit this vulnerability by sending crafted Elliptic Curve Diffie-Hellman ECDH ciphertext to the gcrypkdecrypt function. This can lead to a heap-based buffer overflow, potentially causing a denial of service DoS condition...